"Cheesy Squash Casserole - DELICIOUS side dish for the holidays or summer cookout. Even squash hates love this cheesy casserole! Squash, bell pepper, onion, flour, baking powder, milk, eggs, cheddar cheese and Monterey Jack cheese. Can make in advance and refrigerate or freeze for later. A must for your holiday meal! #casserole #thanksgiving #christmas #sidedish #squash..."