Preheat oven to 350 degrees F. Lightly spray a 9 inch pie pan with cooking spray.
Tear corn tortillas in half and place on bottom of pie pan, lining the bottom.
Brown ground beef and onion. Add garlic powder, chili powder, thyme, salt, oregano and cumin. Pour over torn tortillas in pie pan.
Top beef mixture with Monterey Jack cheese. Beat eggs and milk together and pour over the mixture in pie pan.
Bake for approximately 50-60 minutes, or until eggs are set. Cut into pie slices and top with any taco toppings you prefer. ENJOY!!