Roasted Vegetable Grilled Cheese Sandwich

Ingredients

• 1 zucchini (sliced)
• 1 yellow squash (sliced)
• 1 eggplant (sliced)
• 1 red pepper (sliced)
• ¼ cup red onions (sliced)
• Olive oil spray
• ½ teaspoon dill
• Salt and pepper (to taste)
• 2 tablespoons butter
• 4 slices thick bread
• 4 ounces Dill Havarti cheese (divided)
• 4 ounces Gouda cheese (divided)