Step 1

Heat the oil in a large pan over medium high heat. Add the ground beef to the pan, season with taco seasoning and salt and pepper to taste.

Step 2

Cook, stirring occasionally, until meat is cooked through, 4-5 minutes.

Step 3

While the beef is cooking, warm the refried beans.

Step 4

Preheat the broiler.

Step 5

Place 4 tostada shells on a sheet pan. Spread 1/4 cup of refried beans over each tostada, then top each one with 1/3 cup meat.

Step 6

Place a second tostada on top of the meat.

Step 7

Spread 1 tablespoon of enchilada sauce on top of the Mexican pizzas, then top each one with 1/4 cup of cheese.

Step 8

Broil for 2-3 minutes or until cheese is melted. Top with tomatoes, green onions and olives, then serve immediately.