Sauté peppers and onions and such together. (I also had a leftover uncooked hamburger patty, so about 6 ounces of ground beef.) Season with salt and pepper. Add zucchini and tomatoes and cooked leeks. Add cilantro at the end. Note: This is just what I had on hand — use anything you have.
Line a buttered dish, such as a 9-inch round baking or pie pan, with about 4 tortillas.Whisk together 3 eggs with 1/2 cup of milk in a large bowl. Add the prepped ingredients. Add the cheese and stir.
Pour into prepared tortilla-lined pan. Bake for about 30 minutes or until set. Mixture should jiggle just slightly when shaken.
Remove from the oven and let sit for 10 minutes before cutting. Ta-da! A simple simple quiche.