1 tablespoon olive oil 1/4 cup chopped yellow onion 3/4 cup sliced button mushrooms 1 tablespoon all-purpose flour 1/2 cup 2% reduced-fat milk 1 cup frozen broccoli florets, thawed 3/4 cup chopped skinless, boneless rotisserie chicken breast 1/4 cup plain 2% reduced-fat Greek yogurt 1 tablespoon canola mayonnaise 1/2 teaspoon kosher salt 1/2 teaspoon freshly ground black pepper 6 (1/2-ounce ... 10 Apple Crumble Recipes for Celebrating Fall If you're craving a sweet fall treat, look no further than these apple crumble recipes. Crumbles get their name because the fruit filling is typically covered with a crumbly mix of butter, flour, and sugar, creating a delightful golden brown topping once baked.