Tortilla Pie

1 tablespoon olive oil
1 medium onion, chopped
1/2 cup celery stalk, chopped
1 clove garlic, minced
1 15-oz can yellow corn, drained
1 15-oz can kidney beans, drained
1 15-oz can black beans, drained
1 15-oz can small white beans, drained
1 6-oz can tomato paste
1 tablespoon taco seasoning
1 tablespoon dried basil
5 10- to 12-inch soft tortillas
1 cup shredded cheddar cheese

Oven at 350. In a frying pan, heat oil and saute the onions, celery, and garlic until onions are transparent. Add corn, beans, tomato paste, and seasoning, heat thoroughly. Set two tablespoons of the bean mix aside. Place one tortilla shell on a baking sheet lightly coated with cooking spray, and spoon a few tablespoons of the bean mix onto it; spread evenly. Place a tortilla on top of beans, top with mix again, and repeat until pie is five layers high. Add two tablespoons water to the remaining mix and spread over the top of the tortilla (this will prevent it from drying out during baking). Bake at 350 for 35 minutes. Sprinkle with cheese, and bake until cheese is melted. Let sit for 15 minutes. Serves six.