Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: in a small bowl, combine first 6 ingredients and mix well using a wire whisk. spread onion slices on a baking sheet and cover with next 3 ingredients; brushing vegetables with half the broth mixture. coat grill rack with cooking spray and spread vegetables (cut side down) on grill rack over medium-hot heat and close lid, cooking for 5 minutes. baste with remaining broth mixture and turn vegetables, grilling an additional 7 minutes or until tender. serve immediately.

Target recipe: make the vegetables: combine vinegar, oil, oregano, red pepper flakes, and garlic. pour over onion, pepper and mushrooms on a rimmed baking sheet. marinate at room temperature, turning occasionally, for 30 minutes. preheat grill to medium-high. remove vegetables from marinade, and reserve marinade. season vegetables with salt and pepper; grill, turning and brushing occasionally with marinade, until tender, 5- minutes for onion, 10-12 minutes for peppers and mushrooms. fill mushrooms with cheese; grill until cheese melts, about 30 seconds. grill bread until toasted, about 30 seconds per side. make the salad: whisk together oil, salt and pepper, and 3 tablespoons reserved marinade; toss with greens. serve with vegetables and bread.