Shredded Chicken-Enchilada Casserole
Ingredients: 2 spray(s) cooking spray 1 1/2 Tbsp olive oil 3 cup(s), chopped uncooked onion(s), divided 1 pound(s) cremini mushroom(s), sliced 1/4-in thick 2 medium uncooked zucchini, halved lengthwise, sliced 1/4-in thick 1 1/2 tsp table salt, divided 28 oz canned diced tomatoes, fire-roasted (undrained) 1 item(s) canned chipotle peppers in adobo sauce, chopped (optional) 4 clove(s), medium garlic…