Crockpot Philly Cheese Steak Casserole

Ingredients:

lbs chip steak or 2 lbs cube steaks, cut into strips…
1 green pepper, cut into strips
1 red pepper, cut into strips
1 onion, thinly sliced
1/2 lb mushroom, sliced more to taste
1 tablespoon olive oil
3/4 teaspoon kosher salt
3/4-1 teaspoon fresh ground pepper
1/4 lb pepperoni, thinly sliced
8 ounces provolone cheese, thinly sliced

Instructions:

1 saute mushrooms in olive oil until softened and light brown, about 5 minutes.
2 add to crockpot along with the rest of the ingredients, except the provolone.
3 cook on low for 6 hours.
4 stir well, add to 6 bowls. Crockpot Philly Cheese Steak Casserole
5 cover with provolone and add some cooking juices to each bowl to melt the cheese