This is my favorite crust less quiche recipe. I have made several variations with sauteed onions, mushrooms, and Canadian bacon.
1 (10 oz) package frozen chopped spinach, thawed and drained
1/2 c. fat-free cheddar cheese, shredded
1 c. fat-free cottage cheese
1/2 t salt
1/4 t pepper
Preheat oven to 350F. Mix all ingredients; pour into a Pam-sprayed pie dish and bake for 35-45 minutes. Cut into wedges.