• Spray the inside of the slow cooker with cooking spray.
• Add the thinly sliced steak to the slow cooker.
• Next add in the minced garlic, sliced onion, minced mushrooms, and sliced bell peppers.
• Whisk together the beef broth, Worcestershire sauce, salt, and pepper.
• Pour the beef broth over the meat and vegetables, and give everything a good stir.
• Cover and cook on low for 6 to 8 hours, or on high for 3 to 4 hours.

Make Sandwiches:

• Optional step: Dab a light layer of bacon grease on the inside of each hoagie bun (adds great flavor).
• Then add a slice of provolone cheese to each bun, tearing it in half and lining one whole side of the bun with it.
• Lightly toast the hoagie buns and cheese on a griddle or in the oven on a cookie sheet.
• Spread mayo on each bun.
• Using tongs, add the meat mixture to each bun.
• Top with a spoonful or two of heated Cheez Whiz.
• And that's it. Your sandwiches are ready to serve.