If you’re craving a hearty and cheesy sandwich that’s both comforting and easy to make, this Slow Cooker Meatball Sub is a must-try! With tender, juicy meatballs simmered in marinara sauce and topped with melted cheese on a toasted hoagie roll, this recipe is perfect for family dinners, game day gatherings, or a crowd-pleasing party dish.
The slow cooker does all the work—letting the meatballs soak up flavor while staying juicy and tender. Pair it with a side salad, fries, or chips for a complete meal everyone will love.
Ingredients
- 1 (24 oz) bag frozen Italian-style meatballs (or homemade)
- 1 (24 oz) jar marinara sauce
- 1 tsp Italian seasoning
- 1/2 tsp garlic powder
- 6 hoagie rolls or sub buns
- 2 cups shredded mozzarella cheese (or provolone)
- 1/2 cup grated Parmesan cheese
- 2 tbsp butter (optional, for toasting buns)
- Fresh parsley, for garnish
Preparation Steps
Step 1: Prepare the Sauce
- Pour marinara sauce into the slow cooker. Stir in Italian seasoning and garlic powder.
Step 2: Add the Meatballs
- Place frozen or fresh cooked meatballs into the sauce and stir until coated.
Step 3: Cook
- Cover and cook on LOW for 4–6 hours or HIGH for 2–3 hours until meatballs are heated through and tender.
Step 4: Toast the Rolls
- (Optional) Spread butter on the hoagie rolls and toast under the broiler for 2–3 minutes until golden brown.
Step 5: Assemble the Subs
- Place 4–5 meatballs into each toasted roll. Spoon extra sauce over the top. Sprinkle with mozzarella and Parmesan cheese. Broil for 1–2 minutes until the cheese is melted and bubbly.
Step 6: Serve
- Garnish with parsley and serve hot with chips, salad, or fries.
Variation
- Spicy Kick: Add red pepper flakes or use spicy marinara sauce.
- BBQ Meatball Subs: Swap marinara for BBQ sauce and top with cheddar cheese.
- Philly Style: Add sautéed peppers and onions on top before adding cheese.
- Garlic Bread Sub: Use garlic butter on the rolls before toasting for extra flavor.
Cooking Notes
- Using frozen meatballs makes this recipe super quick, but homemade meatballs will make it extra special.
- Broiling the subs after assembling ensures gooey, melted cheese and a toasted top.
- For softer rolls, skip the toasting step.
Serving Suggestions
- Serve with French fries or sweet potato fries.
- Add a fresh Caesar salad or garden salad.
- Pair with roasted vegetables for a lighter side.
- Great for game-day parties—set up a meatball sub station with toppings!
Tips
- Use sturdy hoagie rolls to avoid soggy sandwiches.
- Keep meatballs warm in the slow cooker on the “warm” setting for serving a crowd.
- Double the recipe if serving for a party.
- For extra cheesy subs, layer cheese inside the roll before adding meatballs.
Prep Time / Cooking Time / Total Time
- Prep Time: 5 minutes
- Cooking Time: 4–6 hours (low) or 2–3 hours (high)
- Total Time: 4 hours 5 minutes
Nutritional Info (per serving, approx.)
- Calories: 490
- Protein: 26g
- Carbs: 40g
- Fat: 22g
- Sodium: 960mg
FAQs
Q1: Can I make this recipe with homemade meatballs?
- Yes! Homemade meatballs will work perfectly. Just cook them first before adding to the slow cooker.
Q2: Can I freeze leftovers?
- Yes. Freeze cooked meatballs with sauce in an airtight container for up to 3 months. Reheat in a saucepan or slow cooker.
Q3: What bread is best for meatball subs?
- Hoagie rolls or sub buns are best since they’re sturdy and hold up well with sauce.
Q4: Can I make this recipe ahead of time?
- Yes, prepare the meatballs and sauce ahead, refrigerate overnight, then reheat in the slow cooker the next day.
Q5: Can I add extra veggies?
- Definitely! Bell peppers, onions, or mushrooms make delicious additions to the subs.
Conclusion
This Slow Cooker Meatball Sub is a family-friendly recipe that’s cheesy, saucy, and full of flavor. It’s perfect for weeknight dinners, football parties, or whenever you’re craving a hearty sandwich. With minimal effort and maximum taste, this slow cooker classic will quickly become one of your go-to comfort meals.