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Meatball Sub Crostini (Gluten Free)

July 17, 2025 by kaylaskitchandfix Leave a Comment

These Meatball Sub Crostini are so easy to make and taste like a bite sized sub. I served them as an appetizer at a dinner party and they were gone in minutes!

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Meatball Sub Crostini

Meatball Sub Crostini

What you’ll need:

  • Ground Beef
  • Bread Crumbs
  • Egg
  • Garlic Powder
  • Onion Powder
  • Italian Seasoning
  • Grated Parmesan Cheese
  • Salt & Pepper
  • Baguette
  • Olive Oil
  • Marinara Sauce
  • Shredded Mozzarella
  • Fresh Basil (optional, to garnish)

DIETARY NOTES

This recipe is made with real ingredients and fits seamlessly into the following dietary needs when using the products/brands (or ones that are similar) listed in the recipe:

  • gluten free
  • vegetarian (using vegetarian “beef” alternative)
  • refined sugar free (using compliant baguette and marinara sauce)
  • nut free

As always, be sure to check the ingredient labels of products you use to ensure they meet your needs!

A NOTE ON CALORIE COUNT, NUTRITIONAL INFO AND SERVING SIZES

Due to my past experiences, I do not include most of the above information within my recipes as it is unsafe for me to do so personally. While I try to share a rough estimate when it comes to the serving size, please note that it is very subjective as we all have different hunger levels both from person to person and even from meal to meal.

If any of the above information is important to you, I understand! We are all different and have various goals and needs. If you’d like, you are welcome to calculate the information needed based on the ingredients you use when making one of my recipes.

I hope you understand! This comes from a place of love and protection both for myself and others like me. If you ever have any questions, send me an Instagram message for the quickest response time! Thank you for being here!

Pasta Chips

Hungry for more?

This recipe was created to be on my Not Your Nonna’s Dinner Party Menu.

Dinner Party Menu:

  • Pasta Chips
  • Easy Focaccia
  • Overdressed Greens
  • Zucchini Lasagna
  • Cannoli Dip

Stay tuned for the rest of the recipes as well as a full look at the party!

FOLLOW ALONG!

Be sure to follow me on Instagram and TikTok to see all of the behind the scenes of recipe creation as well as how to videos to watch them come to life! You can also head over to my Pinterest to save all of my recipes in one spot that you plan whip up in the future.

PS – If you make this recipe or any of my other recipes, I would be so grateful if you left a review so I can hear what you think! I also am happy to answer any questions you may have on here, but if you want a quicker response, be sure to shoot me a message on Instagram. Thank you so much and talk soon!

Meatball Sub Crostini

Meatball Sub Crostini

Print Recipe Pin Recipe
Prep Time 10 minutes mins
Cook Time 40 minutes mins
Total Time 50 minutes mins
Servings: 22 crostinis
Course: Appetizer, Snack
Ingredients Method

Ingredients
  

Meatballs
  • 1 lb ground beef
  • ¼ cup gluten free bread crumbs (I use Jeff Nathan Creations)
  • 1 egg
  • ¼ cup grated parmesan cheese
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • 1 tsp Italian seasoning
  • salt & pepper, to taste
Meatball Sub Crostini
  • 22 slices gluten free baguette (I use Against the Grain)
  • marinara sauce
  • shredded mozzarella

Method
 

Meatballs
  1. Preheat your oven to 350℉ and line a large baking sheet with parchment paper.
  2. Combine the meatball ingredients, then roll into small meatballs (~1 tbsp or so in size, 22 meatballs) ensuring the sizes are consistent.
  3. Space out the meatballs on the baking sheet and bake for 20 minutes. Once done, leave the oven on for the crostinis.
Meatball Sub Crostini
  1. Slice the baguette into 22 pieces, one for each meatball. Space out the pieces on a parchment lined baking sheet.
  2. Drizzle olive oil over the baguette slices and bake for 10 minutes.
  3. Once slightly toasted, top each baguette slice with a thin layer of marinara sauce, then a sprinkle of cheese and then place a meatball on top. If you'd like, you can place a little cheese on top of the meatballs as well.
  4. Once all of the crostini are assembled, bake for 5-10 minutes or until the cheese is melted and the baguette is crunchy. Serve immediately!

Filed Under: Appetizers, Food, Gluten Free, Recipes, Refined Sugar Free, Sides Tagged With: Appetizers, Dinner Party, Gluten Free, Meatball Sub Crostini, Not Your Nonna's

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Hi, I’m Kayla!

and I'm the girl behind KK&F, a place where you can get your "fix" on all things lifestyle and find your next meal with my favorite healthy recipes. I love to recreate my favorite foods using real ingredients while inspiring practical and intuitive wellness fit for real life.

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