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Easy Crockpot Sausage and Peppers Sub Sandwiches

crockpot sausage and peppers sub sandwiches - featured image

A comforting and easy crockpot recipe featuring Italian sausage, bell peppers, and onions slow-cooked to perfection and served on crusty sub rolls with optional provolone cheese.

Ingredients

Scale
  • 1.5 pounds Italian sausage links (mild or spicy)
  • 3 large bell peppers (red, green, yellow), sliced into strips
  • 1 large yellow or white onion, thinly sliced
  • 3 garlic cloves, minced
  • 1 can (14.5 oz) crushed tomatoes or marinara sauce
  • 1 tablespoon olive oil
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and black pepper to taste
  • 6 sub rolls or hoagie buns
  • 6 provolone cheese slices (optional)

Instructions

  1. Slice bell peppers into thin strips, slice onion thinly, and mince garlic cloves (about 10-15 minutes prep).
  2. Optional: Brown sausage links in a skillet over medium heat for 3-4 minutes per side for extra flavor.
  3. In the crockpot, pour olive oil and add sliced peppers, onions, and garlic. Nestle sausage links on top.
  4. Sprinkle dried oregano, dried basil, red pepper flakes (if using), salt, and black pepper over the ingredients.
  5. Pour crushed tomatoes or marinara sauce over the top and gently stir to combine seasonings with veggies, keeping sausage mostly on top.
  6. Cover and cook on low for 4 hours or on high for 2 hours until sausage reaches 160°F internal temperature and peppers are tender.
  7. Optional: Halfway through cooking, turn sausage links with tongs for even cooking.
  8. Preheat oven to 350°F. Slice rolls lengthwise, keeping them hinged.
  9. Assemble sandwiches by placing sausage links on rolls, spooning peppers and sauce over, and topping with provolone cheese if desired.
  10. Place sandwiches on a baking sheet and bake for 5-7 minutes until cheese melts and bread is slightly toasted.
  11. Serve warm.

Notes

If peppers are too watery after cooking, cook crockpot uncovered for last 30 minutes to thicken sauce. Do not overcrowd crockpot to avoid steaming sausage. Optional browning of sausage adds flavor but is not necessary. For gluten-free, use gluten-free buns or serve over rice or polenta. For dairy-free, omit cheese or use plant-based alternative.

Nutrition

Keywords: crockpot, sausage and peppers, sub sandwiches, slow cooker, easy dinner, Italian sausage, comfort food