Place thinly sliced steak, sliced green bell pepper, sliced red bell pepper, and sliced onion into a crock pot.
Season with minced garlic, salt, black pepper, and Italian seasoning. Pour beef broth over the top.
Cover and cook on low for 4–5 hours or on high for 2–2.5 hours until the steak is tender.
Preheat the broiler. Place hoagie rolls open on a baking sheet.
Fill each roll with the steak, peppers, and onions from the crock pot. Top each with slice provolone cheese.
Broil for 2–4 minutes until the rolls are toasted and the cheese is melted.
Serve warm and enjoy!
Video
Notes
Only assemble the sandwiches that you are going to eat. Refrigerate any remaining crock pot ingredients in an airtight container for up to 5 days. I love having the peppers and onions soft but if you prefer firmer peppers and onions add them into the crock pot for the last hour only of the cooking time when cooking on low (30 minutes on high).