Broccoli shrimp casserole is a favorite of mine. There are so many different cheeses that can be used, experiment. For gluten-free, wheat-free, use Progresso gluten-free broccoli soup instead or equivalent and don't add the milk. All Campbell soups contain wheat and are not gluten-free. For vegetarians leave out the bacon.
We loved this creamy cheesy, broccoli casserole. Adding shrimp bulks it up and could be served as a main meal or a side dish. Cayenne adds a little heat to the casserole. But we really enjoyed the bacon. It adds a smoky flavor that's nice with the savory cheese and creamy broccoli cheddar soup. Done in 30 minutes, this is an easy dinner.