Gluten Free Philly Cheesesteak Stuffed Peppers

I love a good Philly Cheesesteak sandwich.  And yes, I could make them with GF bread.  But, after having them this way last night I can honestly say...I don't miss the bread at all!!

Ingredients:
8 oz Thinly Sliced Roast Beef (we found GF pre-sliced at Trader Joes)
8 slices Provolone Cheese
2 Large Green Bell Peppers
1 Medium Sweet Onion
6 oz. Baby Bella Mushrooms (we omitted because hubby doesn't do mushrooms)
2 Tbs. Butter
2 Tbs. Olive Oil
1 Tbs. Garlic-minced
Salt and Pepper-to taste

Directions:
Slice peppers in half lengthwise, remove ribs and seeds.
Slice onions and mushrooms.  Saute over medium heat with butter, olive oil, minced garlic and a little salt and pepper.  Saute until onions and mushrooms are nice and caramalized. About 25-30 minutes.
Preheat oven to 400*.
Slice roast beef into thin strips and add to the onion/mushroom mixture.  Allow to cook 5-10 minutes.
Line the inside of each pepper with a slice of provolone cheese.
Fill each pepper with meat mixture until they are nearly overflowing.
Top each pepper with another slice of provolone cheese.
Bake for 15-20 minutes until the cheese on top is golden brown.

Recipe found via Pinterest found here.

Super simple and so delicious!!