Shredded Beef Burritos (enchilada style)

16 oz. Cheddar Cheese
10 oz. can green enchilada sauce
10 oz. can red enchilada sauce
1 lb. cooked shredded beef
1 small onion (chopped)
1 pkg. flour tortillas
shredded lettuce

Grate cheese.  Stir green and red enchilada sauce together.  Saute onion.  Mix meat, 1/2 sauce mixture and onion together in separate bowl.  Heat tortillas in microwave to soften.  Spread a scoop of meat mixture onto center of each tortilla, top with cheese.  Fold bottom of tortilla over meat, then fold over each side.  Place burrito seam side down in a greased 9 x 13 pan.  Pour remaining sauce over burritos and top with cheese.  Place in 350 oven and bake for 15 minutes.  Serve over shredded lettuce.  Makes 5-6 large burritos.