Butternut Squash and Balsamic Onion Sandwich

INGREDIENTS

• 4- ¼” slices of butternut squash, peeled
• 2 tablespoons olive oil, divided
• salt and pepper
• 1 cup red onion, thinly sliced
• 2 tablespoons balsamic vinegar
• 2 slices whole wheat bread
• 1 slice of smoked gouda (or another favorite cheese)- leave off for vegan!