Take the time to cut all your veggies and sausage around the same size. Start adding all the ingredients to the skewers piece by piece alternating as you go. You can customize per person or make them all the same whatever you prefer. My husband hates mushrooms so I made a few without them for him.
When they are all skewerd up brush them on both sides with the pesto and season with some salt and pepper. Brush a little oil on the grill grates and place the kabobs on the grill. Cook them to your liking, the sausage is already cooked through. We did about 5-7 minutes on each side with the grill closed. Try to only flip them once or else the food may start coming loose of the skewers and falling off.