Taco Casserole

1-1/2 lb ground beef
1 large onion, finely chopped
2 TBS garlic
1 bell pepper
salt and pepper
1 c water
2 tsp dried chili pepper flakes
1 bottle taco sauce
2 (4 oz) cans diced green chilies
1 (14) oz sliced ripe olives, drained and divided
1 (1-1/4 oz) pkg taco seasoning
1 (4-1/2 oz) pkg taco shells, broken into pieces
4 c shredded cheese, divided
1 large tomato, diced
3 sliced green onions
shredded lettuce

Preheat oven to 350 degrees.
Cook beef onion, bell pepper and chili flakes and drain.
Season with salt and pepper.
Stir in water, taco sauce, green chilies, half of olives and taco seasoning.
Cook over low for 6 to 8 minutes.
Layer half of broken shelves in bottom of greased 9x13 pan.
Cover with half of meat sauce.
Cover with 2 c cheese.
Repeat with remaining taco shells, meat sauce and cheese.
Bake 20 minutes or until bubbly, and cheese is melted.
After baking, sprinkle with remaining olives, tomato green onions and lettuce.