Grilled Halloumi and Vegetable Kebabs

1. 1
   Core the tomatoes, coarsely chop, and place in a blender.
2. 2
   Add the remaining ingredients and blend until smooth. Transfer 1 cup of the sauce to a small serving bowl and set aside for serving. Divide the remaining sauce between 2 large bowls; set aside.

For the skewers:

1. 1
   Trim and cut the eggplant into 1-inch chunks and place in one of the large bowls of sauce. Trim the stems from the mushrooms, add them to the bowl with the eggplant, and toss to combine; set aside.
2. 2
   Core and seed the bell peppers, cut into 1-inch pieces, and place in the second large bowl of sauce. Cut the cheese into 24 pieces, add to the bowl with the peppers, and toss to combine; set aside.
3. 3
   Heat a gas or charcoal grill to medium high (about 375°F to 425°F). Meanwhile, thread the vegetables and cheese onto the skewers (alternating each ingredient), leaving about 1/8 inch of space between each piece. Place on a baking sheet and season generously with salt and pepper.
4. 4
   When the grill is ready, rub the grates with a towel dipped in oil. Place the skewers on the grill. Close the grill and cook, turning the skewers every 3 minutes, until all sides are lightly charred on the edges and the vegetables are crisp-tender, about 15 to 20 minutes total. Transfer the skewers to a serving platter and serve with the reserved sauce.