Stuffed peppers with cauliflower rice and black beans

These stuffed peppers are bell pepper halves filled with cauliflower rice cooked with onion, garlic and cumin, then mixed with black beans, corn and tomato and baked until the peppers are soft and sweet. The cauliflower rice stands in for the usual white rice, so the filling cooks in minutes and stays loose rather than starchy, and the beans make it substantial enough for dinner. The method on the card above solves the two problems that ruin most stuffed peppers: peppers that are still crunchy when the filling is done, and a filling that weeps water into the dish.

Why the peppers are par-baked

A raw bell pepper wall is thick and firm, and it needs a long time in the oven to turn tender. The filling, on the other hand, is already cooked when it goes in; it only needs to heat through and brown on top. If raw peppers are filled and baked in one go, one of two things happens: the peppers are done and the filling has dried out, or the filling is perfect and the peppers still snap.

Par-baking gives the peppers a head start. Brushed with oil and set cut side down, the halves trap their own steam and soften in about 15 minutes, while you cook the filling on the stovetop. The skins should look slightly wrinkled and the halves should bend a little when you lift them, but they must still hold their shape, because they need to support the filling and they keep cooking in the second bake.

Some recipes blanch the peppers in boiling water instead, or skip the head start for a crisper pepper. Blanching softens them just as well but leaves water inside the halves, which ends up in the filling; skipping it gives peppers with a firm bite. Par-baking is the option that softens them and dries them at the same time.

The second bake runs in two parts. Covered with foil for 15 minutes, the peppers steam until tender. Uncovered for another 10 to 15 minutes, the top of the filling dries and browns lightly. The peppers are done when a paring knife slides into the thickest part of the wall with no resistance.

A filling that is not watery

Cauliflower is mostly water, and so are tomatoes and peppers. Each of the following steps keeps that water out of the finished dish:

• Cook the cauliflower rice uncovered over medium-high heat and keep stirring until the bottom of the pan looks dry. A lid traps steam and turns it soft and wet. For riced cauliflower made from scratch, how to make cauliflower rice covers grating, pulsing and drying.
• Drain the canned tomatoes thoroughly. Tip the can into a sieve and let it sit while you cook the onion. The juice is good in soup or chili.
• Use the corn straight from frozen. It thaws in the hot pan, and any water it releases cooks off with the rest.
• Pour off the liquid in the baking dish after par-baking. Peppers release juice as they soften, and that juice would otherwise pool under the filling.

The lime juice goes in after the filling comes off the heat, so its fresh sharpness stays bright instead of cooking away.

Halves or whole peppers

Halving the peppers lengthwise through the stem gives eight boat-shaped halves that sit flat, cook evenly and have more filling exposed to brown on top. Whole peppers with the tops cut off make a more traditional presentation. They stand upright in a smaller dish, hold more filling each, and need longer in the oven because heat has to travel through a taller column of filling. If you choose whole peppers, trim a thin slice from the base so they stand, and judge doneness by the knife test rather than by the clock.

Pick peppers that are wide, with flat sides and four lobes at the base; they hold more filling and sit steadier. Red, yellow and orange peppers are sweeter than green ones, which are picked before they ripen and taste sharper.

Cheese-free toppings

The filling is seasoned enough to stand on its own, but a topping adds contrast:

• Avocado and salsa (the optional toppings on the card) add cool creaminess and acidity after baking.
• Toasted breadcrumbs: toss a few tablespoons of breadcrumbs with a little olive oil and a pinch of salt and scatter them over the filling for the uncovered part of the bake. They add crunch but also wheat.
• Pumpkin seeds (pepitas): sprinkle them on for the last few minutes of baking so they toast without burning.
• A cashew cheese sauce or a store-bought vegan shredded cheese, added for the uncovered stage. Check the label: many contain tree nuts, coconut or soy.
• Fresh herbs: chopped cilantro or sliced green onions just before serving.

Toppings are not included in the nutrition on the card.

Substitutions and variations

• Beans: pinto or red kidney beans work in place of black beans. The University of Nebraska-Lincoln Extension says to use 1 3/4 cups of cooked, drained beans in place of one 15-ounce can, so home-cooked beans work at the same measure. If you cook dried red kidney beans yourself, the FDA says soaking them for a minimum of 5 hours and then boiling them in fresh water for at least 30 minutes will remove and destroy the natural toxin they contain; canned kidney beans are already cooked.
• Rice instead of cauliflower rice: 2 to 3 cups of cooked brown or white rice can replace the cauliflower rice. Stir it in with the beans rather than frying it; the filling becomes heavier and the nutrition on the card no longer applies.
• Heat: add a minced jalapeño with the onion, or swap half the paprika for chipotle chili powder.
• Vegetables: diced zucchini or chopped spinach can go into the skillet with the cauliflower; cook until the pan is dry again before adding the beans.
• What does not work well: fresh tomatoes chopped into the filling (too much water unless seeded and drained) and skipping the par-bake to save time.

In place of ground beef or turkey

Most stuffed pepper recipes with cauliflower rice use ground meat. The black beans already make this filling substantial, but for a meatier texture or more protein, replace the beans with one of these, or use half beans and half of the add-in. Each changes the nutrition on the card.

If you are counting carbohydrates, the beans and corn are where most of them in this filling come from; replacing the beans with tofu and the corn with diced zucchini lowers that, and the card no longer applies.

Other ways to cook it

As a casserole or skillet

For deconstructed stuffed peppers, dice the 4 peppers instead of halving them and cook them with the onion until soft, about 5 minutes, then continue with the card from the spices. Serve it straight from the skillet, or spread it in the 9x13-inch dish and bake it covered for 15 minutes and uncovered for 10 to 15 minutes more, as in the last step on the card. It is quicker to assemble and every spoonful has the same mix of pepper and filling.

Slow cooker

Use whole peppers with the tops cut off, so they stand upright. Pour 1/2 cup of water or salsa into the slow cooker, stand the filled peppers in it, cover and cook on low for 4 to 6 hours, until a knife slides easily into the pepper walls. The par-bake is not needed, because the slow cooker softens the raw peppers.

Electric pressure cooker

Pour 1 cup of water into the pot, set the trivet inside and stand 4 filled whole peppers on it. Cook on high pressure for about 5 minutes and release the pressure quickly; the peppers soften very fast under pressure, and a longer time leaves them collapsed. Brown the tops under the broiler afterward if you like.

Air fryer

An air fryer suits 2 to 4 halves. Par-cook the empty halves cut side down until they just soften, fill them, and cook until the tops brown. The fan browns the filling quickly, so use a setting lower than the oven temperature on the card and check early.

Italian, taco and poblano versions

• Italian: replace the cumin, chili powder and paprika with 1 1/2 teaspoons of dried Italian herbs, use cannellini beans or chickpeas instead of black beans, leave out the corn and lime, and stir in 1/2 cup of thick marinara instead of the drained tomatoes. Top with the oiled breadcrumbs for the uncovered stage.
• Taco: add 1 teaspoon more chili powder and 1/4 teaspoon of cayenne, and serve with shredded lettuce, salsa, avocado and crushed tortilla chips.
• Poblano: poblano peppers have thinner walls and a mild, green heat. Par-bake the halves for about 10 minutes instead of 15, and expect each to hold a little less filling, so use 5 or 6 poblanos.
• Green bell peppers: they work in any version and taste sharper and less sweet than red, yellow or orange ones.

Make-ahead, storage and freezing

The filling can be made a day ahead and refrigerated, or you can fill the par-baked peppers, cover the dish and refrigerate it. Bake straight from the refrigerator, adding 10 to 15 minutes to the covered stage, until the center of the filling reaches 165°F on a food thermometer.

Refrigerate baked leftovers within 2 hours, in a covered container at 40°F or below, and eat them within 3 to 4 days, the window USDA’s Food Safety and Inspection Service gives for leftovers. Reheat them covered, in the oven or microwave, until the filling reaches 165°F.

To freeze, cool the baked peppers, wrap them individually or pack them in a freezer container, and freeze. The same FSIS guidance says leftovers can be frozen for 3 to 4 months and stay safe indefinitely when frozen, though they lose moisture and flavor over longer storage. FSIS also notes it is safe to reheat frozen leftovers without thawing; cover them so the tops do not dry out, and expect the peppers to be softer than freshly baked ones. If pepper texture matters most to you, freeze only the cooled filling instead, then thaw it in the refrigerator and stuff freshly par-baked peppers on the day.

Common mistakes and how to fix them

• Crunchy peppers: they were not par-baked long enough, or they were taken out too soon. Cover the dish again and bake for a few more minutes, then test with a knife.
• Peppers collapsing: the par-bake went too long. The halves should still hold their shape when you flip them.
• Soggy, wet filling: the cauliflower rice was cooked covered or not long enough, or the tomatoes were not drained. Next time cook the filling until the pan is dry before stuffing.
• Bland filling: the spices went in too late or the salt was too low. Bloom the spices in the oil with the garlic, and taste the filling before stuffing; it should taste slightly over-seasoned, because the pepper around it is unseasoned.
• Burnt tops: the uncovered stage ran too long, or a topping such as breadcrumbs went on at the start. Add toppings only for the uncovered stage.

Allergy and ingredient notes

As written, the recipe contains none of the common allergens named here: no tree nuts, peanuts, soy, wheat or gluten, sesame or coconut. It is made with gluten-free ingredients; check labels for cross-contact, especially on canned beans, tomatoes and spice blends. Toppings and swaps change this: breadcrumbs contain wheat, cashew sauces and walnuts are tree nuts, tofu and TVP contain soy, plant-based crumbles often contain soy or wheat, and vegan shredded cheeses often contain coconut, soy or nuts.

For another dinner built around cauliflower, try baked BBQ tofu with cauliflower mash. If you have extra peppers, eggplant and zucchini, chickpea ratatouille uses them in a one-pot stew.