A low carb version of the classic Philly cheesesteak that is meaty, cheesy, and packed with flavor. This one pot versatile dish is easy to prepare and delicious to serve.
Preheat the oven to 350F. In a large oven-safe skillet, heat half of the olive oil over medium-high heat.
Add the thinly sliced beef; season with salt and pepper to taste and saute until browned. Remove from the pan and set aside.
Add the onion and bell peppers to the skillet, season with salt and pepper, and cook for 3-5 minutes, until softened. Add the garlic and cook for 30-60 seconds.
Add the beef broth and Worcestershire sauce and stir. Return the beef to the pan, then layer the American cheese on top of everything. Cover the pan and simmer, allowing the cheese to melt, then remove the lid and stir it into the beef and veggies. Reduce the heat to medium and allow it to simmer down a bit, until the sauce thickens.
Sprinkle the top with chopped tomatoes, then sprinkle or layer on the provolone cheese. You can also transfer the mixture to a casserole dish at this point.
Bake for 10-15 minutes, or until the cheese is melted and the casserole is heated through. Broil for 2-3 minutes for a golden brown top.
Notes
Thinly sliced steak is best. Cooks evenly and easier to eat.
Broil for the last 2-3 minutes to achieve a golden top.
Rest for a few minutes once it is out of the oven to make cutting and serving easier.
Store any leftovers in an airtight container. This will prevent it from drying out and keep the flavors locked in. Store in the refrigerator for 4 to 5 days.
Reheating in the oven is the best option for this dish. Preheat your oven to around 350°F (175°C). Cover the casserole dish with aluminum foil to stop the top from browning or drying out too quickly. Reheat for about 15-20 minutes.