In the slow cooker, place chicken breasts. Top with sliced peppers, onions, and garlic. Drizzle with olive oil and sprinkle with Italian seasoning, salt, and pepper.
Cook:
Cover and cook on low for 5–6 hours or on high for 2½–3 hours, until the chicken is cooked through and easily shreddable.
Shred and stir:
Shred the chicken directly in the slow cooker and mix with the juices and vegetables.
Assemble sandwiches:
Toast hoagie rolls if desired. Spoon chicken mixture onto each roll and top with provolone cheese. Place under broiler for 1–2 minutes to melt the cheese.
Serve:
Serve warm with chips, pickles, or a simple side salad.
Notes
Customise it: Add mushrooms or swap in pepper jack for a spicy twist.
Low-carb option: Serve over lettuce or in a low-carb wrap instead of bread.
Make ahead: Chicken mixture can be made ahead and refrigerated for up to 3 days or frozen for up to 3 months.
Serving idea: Great for parties — keep warm in the slow cooker and let guests build their own!