Homemade Mexican Pizzas

I've made this several times recently and it's super delicious. A lot like those yummy Taco Bell ones.

1 lb ground beef
1 can refried beans
4 large flour tortillas
cheddar cheese
oil
salsa
taco sauce (optional)
sliced green onion
diced, fresh tomato
sliced black olives (optional)

Preheat oven to 400 degrees.
Brown the hamburger meat and make it the way you do for tacos. Set aside. Heat a separate skillet, large enough to fit a tortilla, to medium-high with oil in it, enough to fry up some tortillas. When oil's hot enough to bubble when tortilla enters it, drop one in. Pop bubbles that form so that it's flatish. Flip if need be and remove when it's golden brown. Repeat with remaining tortillas. Heat refried beans and set aside. Now assemble your scrumptious creation. On a cookie sheet, place 2 tortillas (side by side) cover each with a LARGE dollop of refried bean, then an equally large dollop of taco meat, then another crisp tortilla. On top of this, spread a layer of salsa (which I like to mix with taco sauce) and then a layer of cheddar cheese. Place in oven for 5-10 minutes or till melty. Meanwhile, chop your veggies for the top. When it comes out, sprinkle top liberally with sliced green onion, diced fresh tomatoes, and black olives (if you like). Cut up and enjoy.
I will tell you that this is a big serving. Larger than the fast food version, so I think 3 people could easily share 2 of these and be stuffed. Enjoy!