01 - In a large bowl, whisk together olive oil, balsamic vinegar, garlic, oregano, smoked paprika, black pepper, and salt to create the marinade.
02 - Add the sausage pieces, bell peppers, onion, and cherry tomatoes to the bowl. Toss to coat evenly. Marinate for 10 minutes.
03 - Preheat grill or grill pan to medium-high heat.
04 - Thread sausage, peppers, onion, and tomatoes alternately onto metal or soaked wooden skewers.
05 - Grill skewers for 12-15 minutes, turning occasionally, until sausages are cooked through and vegetables are tender and lightly charred.
06 - Serve hot, garnished with chopped parsley and lemon wedges on the side.