My mother always made meatloaf from chicken with an egg in the center for Rosh Hashana. She also made tomato sauce to go with it because we didn’t use ketchup.
I like to make a pastrami roast. You put it in the oven at about 300 for 5-6 hours depending on the size. It is so good.
I usually make chicken cutlets for the second night because it is light.