Creating grilled sausages with peppers and onions is simple when you follow these steps:

1. Preheat the Grill: Start by preheating your grill to medium-high heat.
2. Prepare the Vegetables: In a large bowl, combine the sliced bell peppers and onions. Drizzle with olive oil and season with salt, pepper, and garlic powder. Toss until the vegetables are evenly coated.
3. Grill the Sausages: Place the sausages directly on the grill. Grill them for about 10-12 minutes, turning occasionally until they are cooked through and have nice grill marks.
4. Grill the Vegetables: While the sausages are cooking, place the pepper and onion mixture in a grill basket or wrap them in aluminum foil. Grill for about 8-10 minutes, stirring frequently, until they are tender and slightly charred.
5. Combine: Once both the sausages and vegetables are cooked, remove them from the grill. Slice the sausages into bite-sized pieces if desired.
6. Plate the Dish: Serve the grilled sausages topped with the grilled peppers and onions. Optionally, serve in buns or on a platter with fresh parsley for garnish.

These simple steps will have you enjoying this incredible dish in no time!