Stuffed Philly Cheesesteak Meatloaf

 

Stuffed Philly Cheesesteak Meatloaf

Key ingredients

Gather these items:

• 1 ½ pounds ground beef (80/20 works well for flavor and juiciness)
• 1 large onion, finely chopped
• 1 green bell pepper, finely chopped
• ½ cup mushrooms, chopped
• 3 cloves garlic, minced
• 1 tablespoon olive oil
• ½ cup whole milk
• 1 cup breadcrumbs (regular, Italian-style, or panko — panko gives lighter texture)
• 1 large egg
• ½ teaspoon salt
• 1 teaspoon black pepper
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon Adobo seasoning
• 3 tablespoons Worcestershire sauce
• 8 slices VERY thick-cut mozzarella cheese (4 for the center, 4 for the top)

Notes and substitutions:

• Swap ground beef for half beef/half pork for extra richness.
• Use low-fat milk if desired, but whole milk keeps the crumb tender.
• If you don’t have Adobo, add a pinch of smoked paprika and extra salt.
• For a lighter loaf, use panko breadcrumbs and reduce milk slightly.
• Preheat the oven to 350°F (175°C). Grease a loaf pan with nonstick spray, butter, or a drizzle of olive oil.
• Heat 1 tablespoon olive oil in a medium skillet over medium heat. Add the chopped onion, green pepper, mushrooms, and minced garlic. Sauté 5–7 minutes until softened and fragrant. Remove from heat and let cool slightly.
• In a large bowl combine ground beef, milk, breadcrumbs, egg, salt, pepper, garlic powder, onion powder, Adobo seasoning, Worcestershire sauce, and the sautéed vegetables. Use clean hands and mix until just combined — do not overwork.
• Place half the meat mixture into the prepared loaf pan. Press it down evenly into a flat layer.
• Arrange 4 very thick slices of mozzarella evenly over the first meat layer.
• Spread the remaining meat mixture on top of the cheese, pressing gently to seal the edges. Reserve the last 4 slices of mozzarella for the finish.
• Bake for 30 minutes on the middle rack.
• Remove from the oven. Place the remaining 4 mozzarella slices on top and sprinkle with chopped parsley if desired. Return to the oven for 10–15 minutes, or until the top cheese is melted and bubbly with slightly crispy edges.
• Let the meatloaf rest 5–10 minutes before slicing. Serve warm.

• Storage and reheating tips

  Keeping leftovers fresh:

  • Refrigerator: Let the meatloaf cool to room temperature (no longer than 2 hours), then wrap tightly in foil or place in an airtight container. Use within 3–4 days.
  • Freezer: Wrap tightly in plastic wrap and foil or place slices in freezer-safe bags. Freeze up to 3 months. Thaw overnight in the fridge before reheating.
  • Reheating: For individual slices, microwave 60–90 seconds until warm. For best texture, reheat slices on a baking sheet at 350°F for 10–12 minutes, or until heated through and the cheese bubbles again.
  • Food safety: Reheat to 165°F (74°C) before serving.

  Pro chef tips

  • Don’t overmix: handle the meat gently to avoid a dense loaf. Mix until ingredients are just combined.
  • Cool the sautéed vegetables slightly before adding them — hot veggies can make the meat mixture too loose.
  • VERY thick-cut mozzarella is essential for a pronounced cheesy center; if your slices are thin, double them.
  • To prevent cheese leaks, press the top layer firmly to seal edges and leave a small meat barrier around the edges.
  • Use an instant-read thermometer to check doneness precisely at the loaf’s center.

  Creative twists

  • Spicy: add sliced jalapeños to the sautéed vegetables or ½ teaspoon cayenne to the meat mixture.
  • Italian-style: swap Worcestershire for a tablespoon of tomato paste and add chopped basil; use provolone instead of mozzarella.
  • Turkey or chicken: substitute ground turkey or chicken and add an extra tablespoon of olive oil to keep the loaf moist.
  • Crusty topping: brush the top with a thin layer of BBQ sauce or ketchup mixed with a splash of Worcestershire before the final bake for a tangy glaze.
  • Vegetarian riff: make a lentil-and-mushroom “loaf” using cooked lentils, finely chopped walnuts, and an egg substitute; keep the cheese center for ovo-lacto vegetarians.

  Your questions answered

  Q: How long does this meatloaf take from start to finish?
  A: Plan 45–60 minutes total: about 10 minutes active prep (chopping and sautéing), 40–45 minutes baking including the final cheese melt and resting time.

  Q: Can I make this ahead and bake later?
  A: Yes. Assemble in the loaf pan, cover tightly, and refrigerate up to 24 hours before baking. Add a few extra minutes to the bake if cold from the fridge.

  Q: My cheese leaks out — how do I stop that?
  A: Use thicker slices and press the meat around the edges to form a seal. You can also line the cheese with a thin meat barrier (leave a rim) to keep it contained.

  Q: Is there a way to reduce fat without drying the loaf?
  A: Use leaner beef but add 1–2 tablespoons olive oil or a little extra milk, and don’t overbake. Panko breadcrumbs also help retain moisture.

  Q: Can I make mini loaves or meatloaf muffins?
  A: Yes — reduce bake time to 20–25 minutes and add the cheese halfway through like the full-size loaf.

• Ingredients

  
  

  For the Meatloaf

  • 1.5 pounds ground beef (80/20) Works well for flavor and juiciness
  • 1 large onion, finely chopped
  • 1 large green bell pepper, finely chopped
  • 0.5 cup mushrooms, chopped
  • 3 cloves garlic, minced
  • 1 tablespoon olive oil
  • 0.5 cup whole milk Use low-fat if desired but whole milk keeps the crumb tender
  • 1 cup breadcrumbs Regular, Italian-style, or panko; panko gives a lighter texture
  • 1 large egg
  • 0.5 teaspoon salt
  • 1 teaspoon black pepper
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 0.5 teaspoon Adobo seasoning Can substitute with smoked paprika and extra salt
  • 3 tablespoons Worcestershire sauce
  • 8 slices VERY thick-cut mozzarella cheese 4 for the center and 4 for the top

  Method

   

  Preparation

  1. Preheat the oven to 350°F (175°C). Grease a loaf pan with nonstick spray, butter, or a drizzle of olive oil.
  2. Heat 1 tablespoon olive oil in a medium skillet over medium heat. Add the chopped onion, green pepper, mushrooms, and minced garlic. Sauté for 5–7 minutes until softened and fragrant. Remove from heat and let cool slightly.
  3. In a large bowl combine the ground beef, milk, breadcrumbs, egg, salt, pepper, garlic powder, onion powder, Adobo seasoning, Worcestershire sauce, and the sautéed vegetables. Use clean hands and mix until just combined; do not overwork.

  Assembly

  1. Place half the meat mixture into the prepared loaf pan. Press it down evenly into a flat layer.
  2. Arrange 4 very thick slices of mozzarella evenly over the first meat layer.
  3. Spread the remaining meat mixture on top of the cheese, pressing gently to seal the edges. Reserve the last 4 slices of mozzarella for the finish.

  Baking

  1. Bake for 30 minutes on the middle rack.
  2. Remove from the oven. Place the remaining 4 mozzarella slices on top and sprinkle with chopped parsley if desired. Return to the oven for 10–15 minutes, or until the top cheese is melted and bubbly with slightly crispy edges.
  3. Let the meatloaf rest for 5–10 minutes before slicing. Serve warm.

  Nutrition

  Serving: 1gCalories: 350kcalCarbohydrates: 20gProtein: 28gFat: 18gSaturated Fat: 8gSodium: 600mgFiber: 1gSugar: 2g

  Notes

  For variations, swap ground beef for half beef/half pork for extra richness. For a lighter loaf, use panko breadcrumbs and reduce milk slightly. Use thicker slices of mozzarella to prevent cheese leaks.
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