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Side view of Grilled Kielbasa Sandwiches showing the juicy texture of the sausage slices and the oily sheen of charred green and red peppers. (Grilled Kielbasa Sandwiches)

Grilled Kielbasa Sandwiches with Charred Peppers and Caramelized Onions

These Grilled Kielbasa Sandwiches feature juicy beef sausage with deep grill marks, jammy caramelized sweet onions, and charred bell peppers, all held together by melted provolone on a toasted hoagie roll.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 4 sandwiches
Course: Dinner, Lunch
Cuisine: American, Polish-American
Calories: 580
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 1 lb (450g) Beef Kielbasa Sliced thick on a 45-degree diagonal
  • 4 Hoagie Rolls Soft white variety
  • 8 slices (180g) Provolone Cheese Mild and creamy
  • 2 large (300g) Sweet Onions Thinly sliced into half-moons
  • 1 large (150g) Red Bell Pepper Sliced into strips
  • 1 large (150g) Green Bell Pepper Sliced into strips
  • 2 tbsp (30ml) Olive Oil Divided use
  • 1 tbsp (4g) Fresh Parsley Finely chopped for garnish

Equipment

  • 1 Cast Iron Skillet or Outdoor Grill Essential for high-heat charring.
  • 1 Kitchen Tongs For flipping sausage without piercing.
  • 1 Chef's Knife For diagonal slicing.

Method
 

Prepare the Vegetables
  1. Heat 1 tbsp oil in a skillet over medium-low. Add onions and a pinch of salt. Cook until translucent and golden brown (15-20 mins).
  2. Increase heat to medium-high. Add pepper strips. Sauté until edges are blackened and charred with an oily sheen (5-7 mins). Remove and set aside.
Grill and Assemble
  1. In the same pan or on a grill, sear the diagonal kielbasa slices until dark grill marks appear and the meat is juicy (3-4 mins per side).
  2. Place split hoagie rolls cut-side down until the edges are toasted and golden.
  3. Fill buns with sausage, top with the onion/pepper mix, and drape with provolone. Cover briefly to melt the cheese. Garnish with fresh parsley.

Notes

For a smokier flavor, cook the entire recipe on a charcoal grill using a cast iron griddle for the onions.
If you like spice, add a pinch of red pepper flakes to the onions while they caramelize.