What's your favorite easy/lazy meal prep with mainly Costco ingredients? Mine is a creamy chicken pesto pasta:
Cook chicken breast in a pan while boiling short pasta
Simmer together heavy cream and Kirkland pesto
Combine cooked pasta, chicken, sauce, sun dried tomatoes (that huge jar in the sauce aisle), and mix in gorgonzola/blue cheese if you have it. Serve with parmesan and pepper.
Pesto noodles with chicken Apple sausage and grape tomatoes. All available at Costco! Can modify to remove sausage for vegetarians or add arugula if desired
Throw frozen Normandy vegetables on a sheet pan. Thaw frozen chicken breast or thighs, cut up into chunks and mix into the vegetables on the pan. Bake at 400 for 20 minutes, then broil for 5 minutes to add some color. Simple, inexpensive, healthy and only one pan to clean!