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Hearty Philly Cheesesteak Onion Soup

A delightful twist on a classic soup, combining the flavors of Philly cheesesteak with the warmth of onion soup, featuring caramelized onions, ribeye steak, bell peppers, and melted cheeses.
Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Course Main Course, Soup
Cuisine American
Servings 4 servings
Calories 550 kcal

Ingredients
  

Main Ingredients

  • 4 tablespoons avocado oil or olive oil
  • 2 tablespoons unsalted butter
  • 3 large yellow onions, peeled and thinly sliced
  • 4 cloves garlic, minced
  • 1 tablespoon fresh thyme leaves or 1 teaspoon dried thyme
  • 2 leaves bay leaves
  • ½ small red bell pepper, thinly sliced
  • ½ small green bell pepper, thinly sliced
  • ½ small yellow bell pepper, thinly sliced
  • 1 tablespoon Worcestershire sauce or coconut aminos
  • ½ teaspoon sea salt, plus more to taste
  • ½ teaspoon black pepper
  • ½ cup cooking apple juice
  • 4 cups beef stock
  • 10 ounces ribeye steak, thinly sliced
  • 4 slices provolone cheese
  • 1 ¼ cups shredded Gruyere cheese

Instructions
 

Preparation

  • Ensure all your ingredients are prepped and ready. Slice the onions and bell peppers, mince the garlic, and cut the ribeye steak into thin strips.

Cooking

  • Heat the avocado or olive oil in a large pot over medium heat. Add the sliced onions and sauté until soft and translucent, about 12 minutes.
  • Add the unsalted butter and continue cooking until the onions turn a rich, deep brown, about 10 minutes.
  • Add the minced garlic, thyme, bay leaves, Worcestershire sauce, sea salt, and black pepper. Cook for an additional 5 minutes.
  • Pour in the cooking apple juice and scrape the bottom of the pot to release any browned bits.
  • Add the beef stock and bring to a boil, then reduce to a low simmer for 25 minutes.
  • Sauté the bell peppers in a separate skillet until tender, about 5 minutes.
  • Add the thinly sliced ribeye steak to the bell peppers and cook until desired doneness, about 3-5 minutes.
  • Combine the beef and peppers with the simmered broth and adjust seasoning if needed.

Baking

  • Divide the soup into ovenproof ramekins. Top with torn keto bun pieces, provolone cheese, and shredded Gruyere cheese.
  • Broil until the cheese is bubbly and golden brown, about 3-5 minutes.
  • Garnish with fresh thyme leaves and serve immediately.

Notes

Customize ingredients according to dietary preferences. For a vegan option, replace beef with plant-based proteins and use vegetable stock.
Keyword cheesesteak soup, Comfort Food, Easy Soup Recipe, Hearty Soup, onion soup