Work on cooking your ground beef in a skillet until no longer pink.
While the ground beef is browning, add your vegetable or canola oil to a frying pan and fry your tortillas a couple minutes until crispy. Set your crispy tortillas off to the side.
Once the ground beef is cooked, drain the grease. Add a few tablespoons of water to your beef and your taco seasoning packet and stir together until well combined.
Now it's time to assemble the casserole.
First, add a bottom layer of half your fried tortillas. Feel free to break them up so they fit your casserole dish better.
Spread a layer of refried beans over the fried tortillas.
Layer your taco seasoned cooked ground beef over the refried beans.
Pour about half of the enchilada sauce over the beef.
Add the other half of the fried tortillas on top of the ground beef and enchilada sauce.
Sprinkle the shredded cheese over the fried tortillas.
Add diced onions and tomatoes.
Bake in the oven for 20 minutes at 350.
Top with chopped green onion.
Slice into individual squares, serve, and enjoy! Top individual plates with additional toppings like sour cream, jalapenos, etc.
Notes
See my "Tips & Advice" section for helpful information!