1 lb. ground beef
2 (8 oz.) cans tomato sauce
1 (1.25 oz.) pkg. taco seasoning mix
1 (8 oz.) can refrigerated crescent rolls
1/2 lb. Velveeta Mexican style, cubed
1 c. lettuce, shredded
1/2 c. chopped tomato
1/4 c. olive slices

Brown meat; drain. Stir in tomato sauce and seasoning mix; simmer 5 minutes. Press dough onto bottom and sides of ungreased 12 inch pizza pan, pressing edges together to seal. Prick bottom and sides with fork. Bake at 375 degrees for 10-12 minutes. Cover with meat mixture; top with cubed cheese. Continue baking until cheese begins to melt. Top with lettuce, tomato and olives. Serve with sour cream if desired.