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Easy Shepherd's Pie Casserole

A comforting casserole that layers seasoned ground beef with mixed vegetables and fluffy mashed potatoes, perfect for family dinners.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Dinner, Main Course
Cuisine American
Servings 6 servings
Calories 400 kcal

Ingredients
  

For the filling

  • 1 pound ground beef
  • 1 medium onion, chopped
  • 2 cloves garlic, minced
  • 1 cup frozen mixed vegetables (peas, carrots, corn)
  • 2 tablespoons tomato paste
  • 1 cup beef broth
  • 1 teaspoon Worcestershire sauce
  • to taste Salt and pepper

For the topping

  • 3 cups mashed potatoes (prepared from about 3 large potatoes)
  • 2 tablespoons butter for dotting on mashed potatoes
  • 1/4 cup shredded cheddar cheese (optional)

Instructions
 

Preparation

  • Preheat oven to 400°F (200°C).
  • In a large skillet, cook ground beef over medium heat until browned; drain excess fat.
  • Add chopped onion and minced garlic to the skillet; cook until softened, about 3-4 minutes.
  • Stir in frozen mixed vegetables, tomato paste, beef broth, Worcestershire sauce, salt, and pepper.
  • Simmer the mixture for 5-7 minutes until slightly thickened.
  • Transfer the beef mixture to a casserole dish, spreading evenly.
  • Top with prepared mashed potatoes, spreading to cover the filling completely.
  • Dot the mashed potatoes with butter and sprinkle with shredded cheddar cheese if using.

Baking

  • Bake in the preheated oven for 20-30 minutes until the top is golden and bubbly.
  • Let cool for 5 minutes before serving.

Notes

To keep leftovers fresh, store them in an airtight container in the fridge for up to 3 days. If you want to freeze it, wrap it tightly and store for up to 3 months. You can prepare the casserole ahead of time and bake it straight from the fridge, adding a few extra minutes to the cooking time.
Keyword Casserole, comfort food, Easy Dinner, family meal, shepherd's pie