Mexican Roasted Pepper Black Bean Quinoa Casserole

A colorful vegetarian casserole layered with fluffy quinoa, black beans, roasted red peppers, corn, tomato, warm spices, lime, and a light blanket of melted cheese. It is filling, freezer-friendly, and easy to portion for busy days.

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Mexican Roasted Pepper Black Bean Quinoa Casserole
Prep25 min
Cook41 min
Total1h 16min
Servings8
Difficultyeasy
Calories390 kcal
CuisineMexican
Vegetarian

Instructions

  1. Rinse the quinoa in a fine sieve until the water runs clear. Preheat the oven to 190°C / 375°F and lightly oil a medium casserole dish.

  2. Combine the quinoa and broth in a saucepan. Bring to a boil, reduce the heat, cover, and cook until the liquid is absorbed and the grains are tender.

  1. Remove the quinoa from the heat and leave it covered to steam. Fluff with a fork so excess moisture can escape.

  2. Meanwhile, heat the olive oil in a skillet. Cook the onion until soft, then add the garlic, cumin, smoked paprika, and oregano and stir until fragrant.

  3. In a large bowl, combine the quinoa, onion mixture, black beans, roasted peppers, corn, tomato sauce, salt, lime juice, and half of the cheese. Mix gently but thoroughly.

  4. Spread the mixture evenly in the casserole dish, press it lightly so it holds together, and sprinkle the remaining cheese over the surface.

  5. Bake until bubbling around the edges and the cheese is fully melted with a few golden spots.

  6. Let the casserole rest before cutting. Finish with cilantro and extra lime, then serve with avocado, yogurt, or a crisp cabbage salad if desired.

Tips

Rinsing quinoa removes its naturally bitter coating. Drain jarred peppers very well so the casserole is not watery. For neat portions, allow the full resting time and cut with a thin, sharp spatula.

Notes

Cool completely before freezing. Freeze individual squares in airtight containers for up to 2 months. Thaw overnight and reheat covered at 180°C / 350°F until hot, uncovering for the final few minutes to refresh the top. Nutrition is an estimate and will vary with ingredient brands and serving size. Cool leftovers within 2 hours, refrigerate in a sealed container, and reheat only the portion you need until piping hot.

Nutrition per serving

390kcal
18gProtein
55gCarbs
12gFat
12gFiber
8gSugar

Frequently asked

Can I prepare this recipe ahead?

Yes. Complete the advance-friendly steps, cool the food promptly, and refrigerate it in an airtight container. Add crisp herbs, nuts, or fresh toppings shortly before serving.

How long do leftovers keep?

Most leftovers keep for up to 3 days when refrigerated promptly in a sealed container. Use clean utensils and discard food that has been left at room temperature for more than 2 hours.

Can I make this casserole without cheese?

Yes. Omit it and add a few tablespoons of mashed avocado or plain yogurt when serving for creaminess. A dairy-free melting cheese can also be used in the same quantity.

Why is my casserole watery?

The quinoa may have retained excess broth or the peppers and beans may not have drained well. Let cooked quinoa steam, drain canned ingredients thoroughly, and bake uncovered until the edges bubble.

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