Saute onion and pepper in olive oil until soft.
Add beans and corn and chia. Season with salt and pepper.
Add taco meat and stir to combine.
Add queso and stir until melted.
Spray a round deep dish pie pan with cooking oil spray.
Spread a thin layer of enchilada sauce in bottom of dish and top with 1 large or 2-3 small tortillas, tearing to form a large circle.
Spread tortillas with a thin layer of enchilada sauce.
Top with 1/2 meat mixture.
Repeat layers, ending with a last layer of tortillas. Pour remaining sauce over all. Sprinkle with cheese.
At this point, the prepared dish can be covered and refrigerated for up to 24 hours
Place dish on a baking sheet to prevent spills while cooking and bake at 350 degrees for 40 or until hot and bubbling
Let pie sit for 5-10 minutes to set before cutting
Makes 4 large servings or 6 smaller servings