Cottage pie is like shepherd’s pie, but with ground beef instead of lamb. This easy cottage pie is a simple, rich, warm, and comforting dinner! This dinner is the definition of true comfort food! It’s my mom’s birthday dinner request every year, and a perfect dish to take to a family that needs a meal. It tastes super rich but it’s actually pretty healthy. Ground beef, onions, carrots, peas, flour, beef broth, red wine, tomato paste, and mashed potatoes are all you need for this crowd-pleasing dinner! It’s a great make-ahead dinner as well.