Course vs Hotdish – What’s the difference?

As nouns the difference between course and hotdish is that course is a sequence of events while hotdish is (us) a variety of baked casserole that typically contains a starch, a meat or other protein, and a canned and/or frozen vegetable, mixed with canned soup.

As a verb course is to run or flow (especially of liquids and more particularly blood).
As an adverb course is (colloquial).