Caramelized onions, mushroom and avocado quesadillas

olive oil

yellow onions, halved and sliced

avocado - pitted, peeled, and sliced

cheese – I used a mix of cheddar and mozzarella

large flour tortillas

bbq sauce (optional)

garlic – minced

fresh button mushroom – sliced

cherry tomatoes - halved

Salt and black pepper to season