Philly Cheesesteak Tortillas

This recipe is adapted from a recipe using elk meat that our family received from a friend of my dad.

2 lbs. hamburger
2 Tbsp. soy sauce
pepper to taste
1 onion, sliced
1 green pepper, sliced long
1 package pepper jack cheese
1/2 lb. fresh mushrooms, sliced

Brown ground beef in skillet. Put in crock pot; add soy sauce, pepper, onion, and green pepper. Cook on low for 7 hours or high for 4 hours. One hour before cooking is finished, add cheese and mushrooms. Serve with warmed flour tortillas spread with sour cream.