Grilled Kielbasa & Caramelized Onion on Rye
Charred kielbasa, sweet-sharp caramelized red onions, and spicy pickled peppers piled on toasted rye with grainy mustard. Ready in 20 minutes, looks like a deli counter masterpiece.
- Total time
- 20 min
- Servings
- 2
- Calories
- 520
- Protein
- 28g

Ingredients
8 items — tap to check off
Missing one? Custrd suggests a swap that works.
Open the appInstructions
Step 1
Score the kielbasa skin in a crosshatch pattern with a knife. Slice red onion thin and seed the hot pepper.
Step 2
Heat olive oil in a large skillet over medium-high. Add kielbasa and sear 4 minutes, turning to char all sides.
Step 3
Push kielbasa to the side. Add onion and whole garlic cloves; sauté 5 minutes until onion softens and edges blacken.
Step 4
Scatter the hot pepper slices into the pan. Deglaze with white vinegar; toss everything to coat, ~1 minute.
Step 5
Toast rye bread in the skillet, 30 seconds per side until edges crisp. Spread mustard on each slice.
Step 6
Divide kielbasa between two sandwiches; top with caramelized onion, pepper, and roasted garlic. Serve immediately.
Tools you’ll need
- 12-inch cast iron skillet or heavy sauté pan
- sharp chef's knife
- tongs
Cook smarter
Get matched recipes for what’s in your fridge
Custrd is an iPhone and Android app that finds real recipes from the ingredients you already have. No more grocery-list aspirations. Try it free for 7 days.



