Grilled Vegetables

1 red onion, cut into 4 pieces and separated
1 yellow sqaush, sliced 3/4" thick and cubed
1 zucchini, sliced 3/4" thick and cubed
1 cup green pepper, cut into 1" squares
1 cup red bell pepper, cut into 1" squares
2 cups mushrooms, fresh

Olive oil mixture:

2 Tbsp olive oil
1/4 Tsp black pepper
1/4 Tsp salt
1 garlic clove
2 Tbsp basil

Toss veggies with olive oil mixture and place in oil sprayed grill basket or foil pan. Grill on medium with lid closed. Stir occasionally until veggies are tender (approx. 10-12 minutes).
For additional tenderness, microwave onion pieces 1-2 minutes before grilling. For crips mushrooms, add about 5-6 minutes into cooking time.