These Savory Mustard Hasselback Kielbasa Bites are a fun and tasty little snack that packs plenty of flavor. The kielbasa is sliced into thin, crispy layers like a mini Hasselback potato, and each fold is filled with a punch of tangy mustard that makes every bite so interesting. The outside gets nicely caramelized while the inside stays juicy and tender.
I love how quick and easy these bites come together, especially when I need a fast appetizer for friends or family. The mustard adds just the right zing, and the way the sausage slices fan out is perfect for scooping up with your fingers. It’s one of those recipes I reach for when I want something a little different but still super comforting.
Serving them warm straight from the oven is my favorite way because the mustard scent fills the kitchen and the kielbasa is juicy and warm. They’re great on their own or paired with a little side of pickles or fresh veggies. These bites always disappear fast at parties — trust me, everyone will be asking for the recipe!
Key Ingredients & Substitutions
Kielbasa: This sausage is smoky and flavorful, making it the star here. If you can’t find kielbasa, smoked sausage or even bratwurst works well as a substitute.
Dijon Mustard: Dijon offers tang and a bit of heat. Whole grain mustard adds nice texture. If you prefer less bite, yellow mustard is a softer option.
Smoked Paprika: It brings a subtle smoky depth. If you don’t have it, regular paprika or a pinch of chili powder can work. I like the smoky touch it adds to this recipe.
Olive Oil: Used to help the mustard mixture stick and help crisp the sausage edges. You can swap with any neutral oil like avocado or vegetable oil.
How Do You Make Perfect Hasselback Cuts Without Slicing All The Way Through?
This step is key for the sausages to fan out and soak up the mustard flavors without falling apart. Here’s how I do it:
- Place the sausage round on a cutting board.
- Using a sharp knife, make thin slices about 3/4 through the thickness, but stop before you cut all the way through. This keeps the slices connected at the base.
- A trick is to place chopsticks or wooden spoons on each side of the sausage round to act as a guard so you don’t accidentally cut too deep.
- This way, the slices open slightly during cooking and hold the mustard sauce inside.
Take your time here to ensure the pieces stay intact for a great presentation and taste.

Equipment You’ll Need
- Baking sheet – I line mine with parchment paper or a silicone mat so cleanup is easy and the sausage doesn’t stick.
- Sharp knife – makes clean, even slices without tearing the sausage.
- Cutting board – provides a stable surface for slicing the kielbasa safely.
- Small mixing bowl – for whisking together the mustard, oil, and spices.
- Brush or spoon – helps spread the mustard mixture evenly over the slices.
Flavor Variations & Add-Ins
- Cheeses: Stir shredded cheese like cheddar or Swiss into the mustard for a gooey, cheesy burst.
- Spices: Add a dash of cayenne pepper or chili flakes for extra heat.
- Veggies: Top with sautéed onions or peppers before baking for more flavor and crunch.
- Sweet touch: Drizzle honey or maple syrup over the sausage before baking for a hint of sweetness.
Savory Mustard Hasselback Kielbasa Bites
Ingredients You’ll Need:
Main Ingredients:
- 2 large kielbasa sausages (about 1 pound total)
- 3 tablespoons Dijon mustard (or whole grain mustard)
- 2 tablespoons olive oil
Spices & Garnishes:
- 1 teaspoon smoked paprika
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ¼ teaspoon black pepper, freshly ground
- Salt, to taste
- Fresh parsley, finely chopped (for garnish)
- Optional: honey or maple syrup drizzle for a touch of sweetness
How Much Time Will You Need?
This recipe takes about 10 minutes to prepare and roughly 20-25 minutes to bake. So, from start to finish, you should be able to enjoy your tasty kielbasa bites in about 30-35 minutes.
Step-by-Step Instructions:
1. Prepare the Oven and Baking Sheet:
Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or a silicone baking mat. This will help keep your pan clean and prevent the sausage from sticking.
2. Slice the Kielbasa:
Rinse and pat the kielbasa dry. Cut each sausage into 1 to 1.5-inch thick rounds. Then, make several partial cuts into each round in a Hasselback style — slice about 3/4 through repeatedly without cutting all the way through so the slices stay connected and fan out a bit.
3. Make the Mustard Mixture:
In a small bowl, combine the Dijon mustard, olive oil, smoked paprika, garlic powder, onion powder, salt, and black pepper. Stir well to blend all the flavors.
4. Arrange and Season Kielbasa Bites:
Place the kielbasa rounds on the prepared baking sheet, either standing upright or laying flat with the slices fanned out slightly. Generously brush or spoon the mustard mixture into all the cuts and over the surface of each piece — this helps the flavors get inside.
5. Bake to Crispy Perfection:
Put the baking sheet in the oven and bake for 20-25 minutes. You’ll know they are ready when the kielbasa bites turn nicely browned, caramelized, and the edges get crispy.
6. Add a Sweet Touch (Optional):
If you like, during the last 5 minutes of baking, drizzle a little honey or maple syrup on top of the bites for a subtle sweet glaze. Continue baking until golden and sticky.
7. Finish and Serve:
Take the baking sheet out of the oven and let the bites cool for a couple of minutes. Drizzle a bit more mustard sauce on top if desired, then sprinkle with fresh chopped parsley and an extra crack of black pepper. Serve warm as a delicious appetizer or snack, perfect with your favorite dipping sauce or pickles.
Can I Use Frozen Kielbasa for This Recipe?
Yes, you can! Just be sure to fully thaw the kielbasa in the refrigerator overnight before slicing and preparing. This helps the sausage cook evenly and hold its shape during baking.
What Can I Substitute for Dijon Mustard?
If you don’t have Dijon mustard, whole grain mustard works great too. For a milder flavor, yellow mustard is a good alternative. Just keep in mind it will change the tanginess slightly.
How Should I Store Leftover Kielbasa Bites?
Store any leftovers in an airtight container in the fridge for up to 3 days. To reheat, warm them gently in the oven at 350°F (175°C) for about 10 minutes or until heated through to maintain crispiness.
Can I Make These Ahead of Time?
Absolutely! You can prep the Hasselback cuts and brush on the mustard mixture, then cover and refrigerate for a few hours before baking. Just bake them fresh right before serving for the best texture.
