grilled garden vegetables with spinach dip

Ingredients

• 1 large green pepper, cut into chunks
• 1 package fresh mushrooms
• 1 large red pepper, cut into chunks
• 1 large red onion, cut into wedges
• 1 medium zucchini, cut into 1/2" rounds
• 1 medium yellow squash, cut into 1/2" rounds
• - salt and pepper
• - olive oil
• - garlic powder
• DIP INGREDIENTS
• 1 package frozen spinach, thawed and squeezed dry (fresh chopped works great, too!)
• 1 cup mayonnaise
• 1 cup sour cream
• 1 can water chestnuts, drained
• 1 package knorr soup mix, vegetable
• 1/2 cup grated onion