Grilled Anti Pasta Salad - Restaurant Association of Nova Scotia

Ingredients

• 1 large red onion, cut into ½ inch (1 cm) slices
• 1/2 cup (125 mL) olive oil
• 1 tablespoon (15 mL) kosher salt
• 1 teaspoon (5 mL) milled pepper
• 1 pound (500 g) white mushrooms, left whole
• 4 peppers (red/yellow/orange), seeded and cut into chunks
• 1 large bunch green asparagus, woody ends removed
• 1/2 cup (125 mL) red wine vinegar
• 1/4 cup (50 mL) bunch chopped fresh basil