Beef Taco Bake

1 pound lean ground beef
1 package taco seasoning
3/4 cup water
3 large wheat tortillas
1/2 cup queso blanco (store bought is fine, or you can make my homemade version if you want!)
1 1/2 cup taco blend shredded cheese
Sour cream for topping, if desired

Preheat oven to 350.
Brown the beef in a large skillet and drain the grease. Mix in the taco seasoning and water, bring to a boil, then simmer for about 5 minutes.
Remove the beef from heat and stir in the queso blanco. 
Spray a round baking pan with cooking spray and place a tortilla in the pan. Spoon 1/3 of the meat mixture onto the tortilla and spread evenly. Top with 1/3 of the cheese. 
Continue until you are done with the layers.
Bake for 15 minutes or until the cheese is completely melted. 
Slice and top with sour cream if desired.