Cheesy Ground Beef Garlic Bread Subs

Equipment

• Large skillet
• Small mixing bowl
• Baking sheet lined with parchment paper
• Pastry brush or spoon
• Aluminum foil (optional)

Ingredients

For the Garlic Butter

• ½ cup (1 stick) unsalted butter, softened
• 3 cloves garlic, finely minced
• 2 tablespoons fresh parsley, chopped (or 1 tablespoon dried)
• ¼ teaspoon salt
• ¼ teaspoon black pepper

For the Beef Filling

• 1 lb (450 g) ground beef (80/20 recommended for flavor)
• 1 small yellow onion, diced
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 1 teaspoon Italian seasoning
• ½ teaspoon garlic powder
• 1 cup (240 ml) marinara sauce
• 1 tablespoon tomato paste

For Assembly

• 4 sub rolls (6-inch), split horizontally but hinged
• 2 cups (200 g) shredded low-moisture mozzarella
• ¼ cup grated Parmesan cheese
• Extra chopped parsley, for garnish

Instructions

Step 1: Prepare the Garlic Butter (5 minutes | Intensity: Low)

1. In a small bowl, combine the softened butter, minced garlic, parsley, salt, and pepper. Mix until smooth and well incorporated. Set aside. Tip: Let the butter sit at room temperature for 20–30 minutes beforehand for easier mixing.

Step 2: Brown the Beef (8–10 minutes | Intensity: Medium)

1. Heat a large skillet over medium-high heat (about 375°F/190°C) . Add the ground beef and diced onion. Cook, breaking the meat apart with a wooden spoon, for 6–8 minutes until the beef is browned and no pink remains. Drain excess fat, leaving about 1 tablespoon in the pan for flavor.

Step 3: Build the Filling (5–7 minutes | Intensity: Medium-Low)

1. Reduce heat to medium-low . Season the beef with salt, pepper, Italian seasoning, and garlic powder. Stir in the tomato paste and cook for 1 minute to deepen the flavor. Pour in the marinara sauce and simmer for 4–5 minutes , stirring occasionally, until the mixture thickens slightly. Remove from heat and set aside.

Step 4: Toast the Garlic Bread (3–4 minutes | Intensity: Medium)

1. Preheat your oven to 400°F (200°C) . Spread a generous layer of garlic butter on both the top and bottom interior halves of each sub roll. Place the rolls cut-side up on the prepared baking sheet. Toast in the oven for 3–4 minutes until the edges are golden and fragrant. Watch closely — garlic butter can burn quickly at this temperature.

Step 5: Assemble the Subs (3 minutes | Intensity: Low)

1. Spoon the beef filling evenly into the bottom half of each toasted roll, pressing gently. Top each with ½ cup mozzarella and a sprinkle of Parmesan. Close the subs with the garlic-buttered top halves. Wrap each sub loosely in aluminum foil if you prefer a softer, steam-infused crust (optional).

Step 6: Bake to Melt (8–10 minutes | Intensity: Medium)

1. Return the assembled subs to the 400°F (200°C) oven and bake for 8–10 minutes , until the cheese is fully melted and bubbly and the bread is deeply golden. For an extra-crisp top, broil on high for 1–2 minutes at the end, keeping a close eye to prevent burning.

Step 7: Rest and Serve (2 minutes | Intensity: Low)

1. Remove from the oven and let rest for 2 minutes before slicing. Garnish with fresh parsley and serve warm with extra marinara for dipping, if desired.