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Mexican Quinoa Casserole (One-Pan Meal)

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  • Author: saadia
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes
  • Yield: 46 servings 1x
  • Category: Dinner, Casserole, One‑Pan Meal
  • Method: Skillet + Oven Bake
  • Cuisine: Mexican‑Inspired
  • Diet: Vegetarian

Description

A wholesome, flavorful one-pan Mexican-inspired quinoa casserole packed with vegetables, black beans, cheese, and spices—perfect for an easy weeknight dinner.


Ingredients

Units Scale
  • 1 cup quinoa, rinsed
  • 1 can (15 oz) black beans, drained and rinsed
  • 1 cup corn kernels (fresh, frozen, or canned)
  • 1 red bell pepper, diced
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1 can (14.5 oz) diced tomatoes with green chiles (e.g., Rotel)
  • 1 cup vegetable broth (or chicken broth)
  • 1 tbsp olive oil
  • 1 tsp chili powder
  • 1 tsp ground cumin
  • 1/2 tsp paprika
  • Salt and pepper, to taste
  • 1 cup shredded cheddar or Mexican blend cheese
  • Optional toppings: chopped cilantro, sliced avocado, sour cream, lime wedges

Instructions

  1. Preheat oven to 375°F (190°C).
  2. In a large oven-safe skillet or pan, heat olive oil over medium heat. Add diced onion and bell pepper; sauté for 5 minutes until softened.
  3. Add garlic and cook 1 minute until fragrant.
  4. Stir in quinoa, black beans, corn, diced tomatoes with chiles, vegetable broth, chili powder, cumin, paprika, salt, and pepper. Mix well.
  5. Bring mixture to a simmer, then remove from heat.
  6. Sprinkle shredded cheese evenly over top.
  7. Carefully transfer skillet to the preheated oven. Bake uncovered for 20–25 minutes, until quinoa is tender and cheese is melted/bubbly.
  8. Remove from oven and let rest for 5 minutes.
  9. Top with optional cilantro, avocado, sour cream, and lime wedges before serving.

Notes

  • Substitute chicken or turkey sausage or cooked shredded chicken for added protein.
  • Make it vegan by skipping the cheese or using dairy-free cheese.
  • Leftovers keep well in the refrigerator for 3–4 days and reheat nicely.
  • Make it ahead by preparing on stovetop, then cover and refrigerate; bake when ready to serve.

Nutrition

  • Serving Size: 1.5 cups
  • Calories: 350 kcal
  • Sugar: 4 g
  • Sodium: 450 mg
  • Fat: 14 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 40 g
  • Fiber: 8 g
  • Protein: 12 g
  • Cholesterol: 25 mg