Layered Tex-Mex Lasagna

If you haven't watched "Forks Over Knives," you should. It's on Netflix and SO worth your time! This recipe comes from the "Forks Over Knives" cookbook. My kids loved it and so did I!

Tomato Sauce
2- 8 oz. cans tomato sauce
3 c. water
1/4 c. cornstarch
3 TB chili powder
1/2 tsp. onion powder
1/4 tsp. garlic powder

4 c. mashed cooked pinto beans
1 c. chopped green onions
1 1/2 c. frozen corn, thawed
1- 2 1/4 oz. can sliced black olives, drained, optional
1-2 TB chopped green chiles, optional
10-12 corn tortillas
salsa, optional
tofu sour cream, optional

1. To make the sauce: Put all ingredients for the sauce into a saucepan. Mix well with a whisk until well combined. Cook over medium heat, stirring occasionally, until thickened, about 5 minutes. Taste and add more chili powder if desired. Set aside.

2. To assemble casserole: Preheat oven to 350 degrees. Put the beans, green onions, corn olives, and green chiles into a large bowl and mix gently until well combined.

3. Spread 1 1/2 c. of the sauce over the bottom of a nonstick baking dish (9x13). Place 3-4 corn tortillas in the bottom. Spread half of the bean mixture evenly over the tortillas. Place another 3 or 4 tortillas over bean mixture, then spread the remaining bean mixture on top. Cover with 3 or 4 more tortillas, and then pour the remaining sauce over the tortillas. Cover the baking dish with parchment paper, then cover with aluminum foil, crimping the edges over the baking dish. Bake for 45 minutes.