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5 from 5 votes

Meatless Tex-Mex Casserole

There's nothing about this dish that isn't wonderful!
Prep Time10 mins
Cook Time15 mins
Course: dinner, Main Course
Cuisine: Mexican-American
Servings: 8


  • 2 tablespoons olive oil
  • 1 onion, diced
  • 1 green bell pepper, diced
  • 1 medium zucchini, diced
  • 1 4.5 ounce can chopped green chiles
  • 1 26.5 ounce carton POMI strained tomatoes (or 29 ounce can tomato puree)
  • 1 2 1/4 ounce can sliced black olives, drained
  • 1/2 teaspoon kosher salt (or to taste)
  • 1/2 teaspoon garlic powder (or to taste)
  • Grinds of black pepper to taste
  • 1/2 to 1 teaspoon chili powder (or to taste)
  • 1/4 teaspoon cayenne pepper (or to taste)
  • 1 15.5 ounce can black beans, drained and rinsed
  • 1/4 cup roughly chopped cilantro (plus extra for garnish)
  • 12 corn tortillas
  • 1 cup shredded Monterey Jack cheese
  • 1 cup shredded sharp Cheddar cheese

For serving:

  • Sour cream (or its vegan equivalent) -- a dollop for each serving


  • In a large skillet, warm the olive oil over medium heat. When the oil is hot, add the onion, bell pepper and zucchini, and toss them about to coat with oil. Then cover the skillet, lower the heat, and let the vegetables sweat until tender -- 4-5 minutes.
  • Stir in the green chiles, strained tomatoes (or tomato puree), olives, seasonings, black beans, and cilantro. Bring the mixture to a simmer over high heat. Then lower the heat, cover the skillet, and let the mixture simmer quietly for 5 minutes.
  • Preheat the oven to 400°F. Also, lightly grease a 9-12 (or 9x-13) baking dish. Arrange 6 corn tortillas in the dish, overlapping them as necessary. Spread the tortillas with half of the vegetable mixture, and then sprinkle on the cup of Monterey Jack cheese. Then layer on the remaining tortillas, and top them with the remaining vegetable mixture and the cup of Cheddar cheese.
  • Bake in the preheated oven until the cheese melts -- 15 to 20 minutes. Let cool for 15-30 minutes before slicing into 8 squares. Top each serving with a dollop of sour dream and a sprinkling of cilantro.