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Leftover Steak Quesadillas

These Leftover Steak Quesadillas are by far my favorite way to use leftover steak. Oozey cheese in a warm tortilla with onions and mushrooms. YUMM!
3.33 from 28 votes
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Main Course
Cuisine American
Servings 4


  • Leftover steak of any kind or Prime Rib
  • 1 large Yellow Onion
  • 1 lb sliced mushrooms
  • 1 teaspoon minced garlic
  • 4 Large Flour Tortillas
  • 8 oz block Monterrey jack cheese
  • olive oil
  • red wine beef broth or water to deglaze pans


  • Prepare your ingredients by grating the cheese, dicing the steak in tiny pieces, and slicing your onions
  • In a large skillet heat a tablespoon or so of olive oil and saute your onion, mushrooms and garlic on medium heat. Deglaze your pan occasionally with wine or beef broth . Cook until the onions are clear.
  • In the same skillet on medium heat place your diced steak with a little olive oil , right before it's done heating deglaze the pan with red wine or beef broth
  • Start heating a large skillet or griddle on medium heat with olive oil
  • Lay a tortilla out flat on the counter
  • ONLY On one half of the tortilla sprinkle desired amount of cheese
  • Then add onion ,mushroom and steak mixture
  • Top with a little more cheese and fold over
  • Carefully place in heated skillet or griddle
  • Brush the top with a little olive oil
  • Once the bottom begins to brown and the cheese begins to melt carefully flip over
  • Cook until the cheese is nice and melted and the outside is slightly brown and crisp
  • Slice in half to serve
Keyword leftover steak quesadilla, leftover steak recipe
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