Layered Mexican Casserole with Corn Tortillas, Vegetables and Black Beans Ingredients- Sauce: Oil- 1/4 cup Butter- 1 tbsp All Purpose flour- 1/4 cup Mexican chili powder or Paprika- 2 tbsp Garlic Powder- 1 tsp Onion Powder- 1tsp Cumin Powder- 1tsp Pepper Powder- 1/2 tsp Dried Oregano- 1 tsp Tomato paste- 2 tbsp Vegetable stock or water- 2 cups Vegetable- Bean Mixture: Onion- 1 chopped Garlic- 3 cloves chopped Green Pepper- 1 cup chopped Colored Pepper- 1 cup chopped Black beans- 1 ( 15 oz. can) Corn( Frozen and thawed or canned)- 1 cup Cilantro- Chopped Cumin Powder- 1 tsp Pepper powder- 1 tsp Salt to taste Corn Tortillas Cheddar Cheese- Grated