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Shepherd's Pie Casserole

A creamy, hearty one-pan meal that's perfect for a cozy dinner, loaded with ground beef, vegetables, and topped with mashed potatoes.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American
Calories: 450
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 1 pound ground beef Use lean ground beef for a healthier option
  • 1 medium onion, chopped For added flavor, use yellow or white onion
  • 2 cloves garlic, minced For best flavor, toast the garlic briefly
  • 1 cup frozen mixed vegetables (peas, carrots, corn) You can substitute with fresh vegetables if desired
  • 2 tablespoons tomato paste
  • 1 cup beef broth Gluten-free options available
  • 1 teaspoon Worcestershire sauce Check for gluten-free versions
  • to taste Salt and pepper Adjust based on preference
  • 3 cups mashed potatoes (prepared from about 3 large potatoes) Prepare in advance to save time
  • 2 tablespoons butter For topping
  • 1/4 cup shredded cheddar cheese (optional) To add a cheesy flavor on top

Method
 

Preparation
  1. Preheat your oven to 400°F (200°C).
  2. In a large skillet, cook the ground beef over medium heat until browned; drain off any excess fat.
  3. Add the chopped onion and minced garlic to the skillet; cook until softened, about 3-4 minutes.
  4. Stir in the frozen mixed vegetables, tomato paste, beef broth, Worcestershire sauce, and season with salt and pepper. Simmer for 5-7 minutes until slightly thickened.
  5. Transfer the beef mixture to a casserole dish, spreading it evenly.
  6. Top with your prepared mashed potatoes, covering the filling completely.
  7. Dot with butter and sprinkle with shredded cheddar cheese if using.
  8. Bake in the preheated oven for 20-30 minutes until the top is golden and bubbly.
  9. Let cool for 5 minutes before serving.

Notes

Leftovers can be stored in the fridge for up to 3-4 days in an airtight container. Assemble the casserole, cover it tightly, and freeze it for up to 3 months.