Lightly spray a grill pan with the cooking spray. Over medium heat, grill the onion, zucchini and eggplant on each side. You want to see grill marks, but don’t overcook. Do this step in batches and set the veggies aside to slightly cool.

Preheat the oven to 375 degrees and using cooking spray, lightly grease a baking dish.

In a medium mixing bowl, combine the Prego® Farmers’ Market Tomato & Basil sauce, olive oil, vinegar, garlic, basil, thyme, salt, pepper, and chili powder.

Pour the sauce into the baking dish in an even layer.

On a slight angle, begin to place the veggies in an oval pattern around the baking dish, alternating with each type of vegetable. Keep going until you have used up all of the veggies. You want the pan to be filled, and packed, but not tightly packed.

Using the cooking spray once more, spray the top of the veggies quite liberally.

Bake for 45 minutes. The tomato sauce will bubble up through the veggies and create a very rustic look. Bake for a few minutes longer if this is not the case by the 45 minute mark.

Garnish with fresh basil and thyme and serve immediately.