Cut the bell peppers and onion into chunks roughly the same size as the shrimp. Leave the mushrooms whole or halve them if large.
½ red bell pepper, ½ green bell pepper, 1 red onion, 6 ounces portobello mushrooms
In a small bowl, whisk together the garlic, olive oil, honey, paprika, salt, and pepper.
3 garlic cloves, 3 tablespoons olive oil, 2 tablespoons honey, 1 ½ teaspoons ground paprika, Salt and pepper
Place the shrimp, chopped vegetables, and mushrooms in a large bowl. Pour the marinade over the mixture and toss until everything is well coated. Cover and refrigerate for at least 30 minutes, or up to 4 hours for deeper flavor.
1 pound shrimp
Start preheating about 20 minutes before cooking: For charcoal grills, arrange coals to one side for indirect heat. For gas grills, turn all burners to high. Aim for at least 400°F (200°C).
Thread the shrimp, peppers, onions, and mushrooms onto soaked wooden or metal skewers, alternating for color and even cooking. Place the skewers on the grill and cook over medium heat for 6–8 minutes, turning occasionally.
Grill until the shrimp are pink, opaque, and slightly charred, and the vegetables are tender.