Meatball Sub Casserole has become a popular dish among food enthusiasts for several reasons. Firstly, it combines the flavors of a classic meatball sub sandwich with the heartiness of a casserole, creating a delicious and comforting meal. This fusion of flavors and textures is sure to satisfy even the pickiest eaters.
Secondly, the recipe for Meatball Sub Casserole is incredibly easy to make, requiring only 5 simple ingredients. This makes it a convenient choice for busy individuals and families, allowing them to whip up a tasty meal without spending too much time in the kitchen.
While Meatball Sub Casserole may not be the epitome of a health food, it can be enjoyed as part of a balanced diet. By using lean ground meat and opting for whole grain bread or alternative options, you can boost the nutritional profile of this dish.
Additionally, the casserole can be loaded with vegetables, such as bell peppers, onions, or spinach, to add extra vitamins, minerals, and fiber. The inclusion of these nutritious ingredients can help make this recipe more wholesome.
One of the best things about Meatball Sub Casserole is its versatility. You can easily personalize the recipe to suit your taste preferences and dietary needs.
For those looking to cut down on carbs, consider using lettuce wraps instead of traditional bread in the casserole. If you prefer a spicy kick, you can add jalapenos or red pepper flakes to the meatball mixture. Experimenting with different types of cheese or adding your favorite herbs and spices can also enhance the flavor profile of the dish.
Overall, Meatball Sub Casserole is a crowd-pleasing, easy-to-make meal that offers room for creativity and adaptation. Whether you’re preparing it for a family gathering or a casual dinner, this dish is sure to leave everyone asking for seconds!

Ingredients
- 1 lb frozen meatballs
- 1 can marinara sauce
- 2 cups shredded mozzarella cheese
- 1 package sub rolls
- 1/4 cup parmesan cheese grated
Instructions
- Preheat your oven to 375°F (190°C).
- In a baking dish, spread a layer of marinara sauce on the bottom.
- Add the frozen meatballs in an even layer on top of the sauce.
- Pour the remaining marinara sauce over the meatballs.
- Sprinkle the shredded mozzarella cheese evenly over the top.
- Bake in the preheated oven for 25-30 minutes, or until the meatballs are heated through and the cheese is melted and bubbly.
- Slice the sub rolls and arrange them in a single layer in a separate baking dish.
- Sprinkle the grated Parmesan cheese over the top of the rolls.
- During the last 5 minutes of baking the casserole, place the dish with the sub rolls in the oven to toast.
- Serve the meatball sub casserole with the toasted sub rolls.
- Enjoy!
I dunno… it was good but kinda bland. Needs some spices or something.
I totally agree! A bit of garlic or some Italian seasoning could kick it up a notch. Maybe even some red pepper flakes for a bit of heat!
Easy and quick! Perfect for busy nights. Will make it again!
I totally agree! So easy to whip up after a long day. Love this recipe!
Could’ve been better. The sauce was kinda bland, not enough flavor.
Meatball sub casserole? Sounds like a mix-up to me. Not a fan of any subs.
I think it’s a great idea! Meatballs and cheese make everything better. Give it a try!
Just because it’s a sub form doesn’t mean it’s bad! Everyone has their tastes, I guess.
I made this last night and it was gone in minutes! Definitely a keeper! 😍
I’m so glad you liked it! It’s super easy, right? 🙌
Gone that quick? Looks like I gotta try it, but I ain’t a fan of meatballs tho 🤔.
This is the best thing ever! I added some spices and it was super tasty!
Oh my gosh, this was so delicious! My kids loved it! I will definitely make it again.
So glad to hear that! My kids loved it too! Easy and yummy!
Its ok, but I prefer making my own meatballs. It feels healthier.
Homemade is always better! But this casserole sounds super easy for a busy night. Maybe I’ll give it a try once! 😊
Honestly, I’m not a huge fan of meatballs and this didn’t change my mind. Too saucy for me.
My oven is broken, can I just microwave it? 🤔
Not as good as I imagined. The rolls got too soggy. Next time I’ll toast them first, I guess?
This was absolutely delicious! The kids loved it!
I don’t know about this. Frozen meatballs? Come on, use fresh ones! 🙄
I get your point, but frozen meatballs are super convenient! Not everyone has time to make fresh ones. 🤷♀️
Yum! The mozzarella was really stretchy! Can I use fresh meatballs instead?
Yummy! But where’s the garlic? Needs more seasoning, tho.
Way too much cheese for me. I think half would be better 🙄
This is a game changer! So easy to make and my kids loved it!
Casseroles are overrated. I prefer my meatballs on spaghetti.
Meatball sub casserole sounds delish! But why put it in a casserole? Just makes it a mess, lol.
I was skeptical about frozen meatballs, but they actually worked well here.
Too easy, not adding this to my dinner rotation. Can’t even call it a casserole.
Yum!! Cheese and meatballs, what’s not to like? This dish was a hit at our family dinner!
Totally agree! This dish is super easy and so tasty. My kids loved it too!
Meh. I thought this was gonna be great but it was just alright. Had to add hot sauce.
Maybe it needed more seasoning? I think it sounds good but I guess everyone has different tastes.
Hot sauce? Seriously? This is a meatball sub casserole, not a taco! 🤦♂️
Tasty but I forgot the parm cheese and it was still good! Gonna try again with it next time.
Easy peasy! Didn’t have sub rolls, used regular bread. Still turned out great!
This sounds good, but can I bake it for longer? I like it crunchy.
Not bad, but it was way too cheesy for my taste. Maybe less mozzarella next time?
Meatball casserole yum
I made it without sub rolls, just served it with pasta and it was yum!
I’m not a fan of meatballs, but my family loved this! They asked for seconds!
That’s awesome! Even if you don’t like meatballs, it’s great that your family found it delicious. Gotta please the crowd, right?
This is the best recipe ever! My kids loved it!
5 stars! So cheesy and comforting. I can devour this whole dish!
This sounds amazing! I love cheesy dishes too. What a great comfort food!
I love this recipe! It was so easy to make and cleanup was a breeze! Perfect for busy nights.
Yummy! I wanna make this for my friends when they come over. Perfect for a party!
That sounds great! Meatball subs are always a hit at parties! Have fun!
Ehhh, it was ok. The meatballs were kinda bland.
I followed the recipe but it didn’t turn out well. My meatballs were still frozen in the middle. Maybe I need to bake longer?
Meatballs and sauce! What’s not to love!
Great recipe but I accidentally burnt the rolls! Oops.
I dunno man, how effective is putting in frozen meatballs? Seems weird.
So easy and delicious! I added some bell peppers for extra flavor, yum!
I can’t believe how simple this was! The bell peppers were a great idea, it gives it a nice crunch. Will make again for sure!
Don’t think this is real pasta, more like a sloppy joe with rolls!
5 stars!! This recipe is a lifesaver for busy nights! I do wish the rolls were crisper tho.
I totally agree! It saves me so much time after work. But yeah, crisper rolls would be nice. Maybe broil them a bit longer next time?
My husband said it tasted like school lunches from the 90s… not sure if that’s good!
I just used whatever cheese I had in the fridge, still turned out great.
So can I use fresh meatballs? Or need frozen ones only? confused.
This recipe is like a party in my mouth! 😋
This feels like cheating – using frozen meatballs? Can’t we make our own? But anyways, it tasted good.
Frozen meatballs are so much easier! Who’s got time to make their own? Glad you liked it!