Favorite easy meal prep

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.