We keep it super simple! These are not super original or creative but they work for us and serve as either lunch, dinner or we've been drinking and need food. Everything is precooked except what I noted:
Turkey Taco meat is good for tacos or nachos for a light lunch
Pulled pork
Bratwurst & chicken sausage
Meatballs ~ for either an app or to toss in pasta for our pasta night
Roast beef from Portillos for hot beef sammys.....some of you may know the name...great hot dog / beef joint in Chicago
Diced ham & slices for with egg bakes /sandwiches.
Homemade beef jerky
Turkey sausage crumbles for breakfast.

Steak tips that are pre-marinated and grill ready.
Costco sells this pre cooked, vacuum sealed turkey breast that we bring for slicing for sandwiches etc.

Adding this year, 2 tubes of Pillsbury pizza crust I have looked on the island and cannot find it.

One thing we did last time that was not planned but we will do again now on purpose. We made way too many potatoes on the grill in foil packets one night but they were great to have the next few mornings with breakfast