To keep the tortillas from turning soggy during baking, fry each side of the tortilla in a small amount of hot oil and drain on paper towels before assembling the layers. It also helps to ensure your filling with the ground beef and vegetables has been cooked down to the point where it is fairly dry before you start layering your beef on your tortillas.
You can bake this in a large casserole baking dish, or even bake it in aluminum foil if you’re short on cooking equipment. As an added bonus, the leftovers re-heat quite nicely.
*Use less of the chipotles in adobo if you prefer less heat in your final dish. But the canned chipotles in adobo are an amazing product if you haven’t been exposed to them yet! Also, Tabasco makes a fantastic chipotle hot sauce.