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Cheesy Mexican quinoa casserole with black beans and tomatoes in a baking dish.
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5 from 5 votes

Cheesy Mexican Quinoa Casserole with Black Beans

Easy cheese vegetarian Mexican quinoa casserole with quinoa, black beans, corn, tomatoes, and cheese. Enough protein for a meal, and a crowd pleaser!
Prep Time20 minutes
Cook Time35 minutes
Total Time55 minutes
Course: Main Dish, Side Dish
Cuisine: Mexican
Keyword: Mexican quinoa casserols
Servings: 6
Calories: 331.2kcal
Author: Susan Pridmore

Equipment

  • fine mesh strainer
  • Small pot
  • Large mixing bowl
  • Chef's knife
  • Wooden spoon
  • box grater

Ingredients

  • ½ cup uncooked quinoa (1 cup cooked quinoa)
  • 15 ounces cooked black beans, drained and rinsed (1 can black beans)
  • 1 cup corn kernels (fresh or frozen)
  • 1 cup halved cherry tomatoes
  • 1 red bell pepper diced
  • 1 yellow bell pepper diced
  • cup diced red onion
  • 1 ½ tablespoons lime juice
  • 1 teaspoon smoked paprika
  • 1 teaspoon ground cumin
  • 2 teaspoons kosher salt
  • ¼ teaspoon dried red pepper flakes
  • 2 cups grated Monterey Jack cheese
  • 1 tablespoon roasted pumpkin seeds (pepitas)

Optional Garnishes

  • avocado slices
  • sour cream
  • cilantro

Instructions

Meal Prepping Tip: While the quinoa simmers, dice the onion and peppers, slice the cherry tomatoes in half, and grate the cheese. When you're finished, the quinoa should be ready.

  • Preheat the oven to 400˚F.
  • Rinse the quinoa by placing it in a bowl, covering it with water, and rubbing the seeds between your palms. Pour it into a strainer and rinse. Repeat 2 more times.
  • Pour ½ cup water or broth into a small pot and bring to a simmer over medium-high heat. Add the rinsed quinoa and a pinch of salt. Reduce the heat to low, cover the pot, and cook at a very low simmer until done.
    You'll know it's done when the seed is opened up to reveal little curls in the seed, about 10 - 15 minutes. (A larger pot of quinoa takes a little longer.)
    Drain of any excess liquid.
    For more details, read this post on how to cook perfect, fluffy quinoa with tips.
  • In a large mixing bowl, combine the black beans, corn, cherry tomatoes, peppers, red onion, lime juice, spices, and cooked quinoa. Toss with 1 ½ cups of grated cheese using a wooden spoon.
    Transfer to a 9-inch X 11-inch casserole dish, and bake for 30 minutes.
    Remove from the oven and sprinkle the remaining cheese on top of the casserole, and return to the oven to bake for another 5 - 10 minutes, until the cheese is melted.
  • Serve warm with optional garnishes listed in the Ingredients.

Nutrition

Calories: 331.2kcal | Carbohydrates: 35.1g | Protein: 19.2g | Fat: 13.7g | Saturated Fat: 7.6g | Polyunsaturated Fat: 1.4g | Monounsaturated Fat: 3.9g | Cholesterol: 33.5mg | Sodium: 1067.2mg | Potassium: 575.3mg | Fiber: 8.9g | Sugar: 3.4g | Vitamin A: 1285.5IU | Vitamin C: 69.7mg | Calcium: 321.5mg | Iron: 3.2mg