Wholesome Hidden Veggie Mini Meatball Subs
These mini meatball subs sneak finely grated veggies into juicy meatballs, making them perfect for picky eaters. Ready in about 35 minutes, they combine savory meat, melty cheese, and tangy marinara in soft mini rolls for a cozy, kid-friendly meal.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Total Time: 35 minutes
- Yield: 8-10 mini subs 1x
- Category: Main Course
- Cuisine: American
Ingredients
Scale
- 1 pound (450g) ground beef (80/20)
- 1 medium carrot, finely grated
- 1 small zucchini, finely grated and squeezed dry
- ½ small onion, finely chopped
- 2 cloves garlic, minced
- ½ cup (about 50g) plain or Italian-style breadcrumbs
- ¼ cup (20g) grated Parmesan cheese
- 1 large egg, room temperature
- 1 teaspoon Italian seasoning (oregano, basil, thyme blend)
- Salt and pepper, to taste
- 2 cups (500ml) marinara sauce, homemade or store-bought
- 8–10 mini sandwich rolls or dinner rolls
- 1 cup (100g) shredded mozzarella cheese
- Fresh basil or parsley leaves (optional, for garnish)
Instructions
- Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper or a silicone mat.
- Finely grate the carrot and zucchini. Place grated zucchini in a clean kitchen towel or paper towels and squeeze out excess moisture.
- In a large bowl, combine ground beef, grated carrot, squeezed zucchini, chopped onion, minced garlic, breadcrumbs, Parmesan, egg, Italian seasoning, salt, and pepper. Mix gently until just combined.
- Form the mixture into mini meatballs about 1 to 1½ inches (2.5 to 4 cm) in diameter. Place evenly spaced on the prepared baking sheet.
- Bake meatballs for 15-18 minutes until cooked through and browned. Optionally broil for 2 minutes for extra color, watching carefully.
- Warm marinara sauce in a small saucepan over low heat or microwave until heated through.
- Slice mini rolls lengthwise without cutting all the way through to create pockets. Spoon marinara sauce inside each roll, add 3-4 meatballs, and top with shredded mozzarella.
- Place assembled subs on a baking sheet and broil for 2-3 minutes until cheese is melted and bubbly. Watch closely to avoid burning.
- Garnish with fresh basil or parsley if desired. Serve warm.
Notes
Squeeze excess moisture from zucchini to prevent soggy meatballs. Use a gentle mixing technique to avoid tough meatballs. Toast rolls briefly under broiler before assembling if they are dense to add crunch and prevent sogginess. For gluten-free, substitute breadcrumbs with gluten-free options. For dairy-free, omit or replace cheeses with vegan alternatives.
Nutrition
- Serving Size: 1 mini meatball sub
- Calories: 280
- Sugar: 4
- Fat: 12
- Carbohydrates: 24
- Fiber: 3
- Protein: 18
Keywords: mini meatball subs, hidden veggies, picky eaters, kid-friendly, quick dinner, easy recipe, ground beef, healthy meatballs