Turkey, corn, tomato, and black bean filling is baked inside a corn tortilla topped with a mild sauce and melted cheese.
Preheat oven to 350 degrees. Heat 1 tablespoon oil in medium pan over medium-high heat. Stir in flour, ground coriander, chili powder, and ground cumin; add tomato sauce, 1 cup water, and 3/4 teaspoon salt. Simmer 10 minutes.
Heat remaining tablespoon oil in a large skillet over medium-high heat; add onion and turkey. Cook, stirring, until browned, 10 minutes. Brush tortillas with oil; warm in oven 3 minutes.
Stir corn, beans, and tomatoes into turkey; season with salt and pepper. Spread 1/2 cup sauce in an 8-inch baking dish. Top each tortilla with a spoonful of sauce, 1/2 cup turkey, and 1 tablespoon cheese. Roll up; place in dish. Cover with remaining sauce and cheese. Bake until heated through, 15 minutes.