Step 1

Prepare the grill with clean grates and preheat to medium heat, 350°F to 450°F.

Step 2

Trim the ends of the eggplant, zucchini, yellow squash and onion and cut into 1/3" to 1/2" slices. Seed the red bell pepper and cut into quarters. Trim the ends of the asparagus.

Step 3

Drizzle the vegetables with olive oil and sprinkle evenly with salt and pepper. Grill the vegetables with the lid closed until tender and lightly charred all over, about 8 to 10 minutes for the bell peppers, onion, and mushroom; 5-7 minutes for the yellow squash, zucchini, and eggplant and asparagus.

Step 4

Serve warm or at room temperature.