Description
Hearty ground beef, mushrooms, and French-style green beans are layered with creamy mashed potatoes and topped with melted cheddar in this easy shepherd’s pie casserole.
Ingredients
- 2 lbs. ground beef (85% lean is best)
- 1 white onion (large), diced
- 2 cloves garlic, minced
- 16oz sliced mushrooms (white or baby bella)
- 2 (14.5oz) cans French-style green beans, drained
- 1 (1oz) packet brown gravy mix
- 1/2 cup water
- 1/4 cup ketchup
- 2 tbs Worcestershire sauce
- 2 tsp paprika
- 1.5 tsp kosher salt
- 1 tsp black pepper
- 32oz premade mashed potatoes
- 2 cups shredded cheddar cheese
Instructions
- Preheat oven to 350°F and lightly grease a 9×13 baking dish.
- In a large saute pan over medium heat, cook the ground beef, breaking it up as it cooks, until it’s browned, about 5 – 7 minutes. Drain most of the fat, leaving just a little behind.
- Stir in the diced onion until it becomes translucent – about 3 minutes.
- Add mushrooms, ketchup, gravy mix, water, Worcestershire sauce, salt and pepper. Stir well and let it simmer on medium heat until the mushrooms have reduced and the filling thickens without being watery, about 6-8 minutes. Stir occasionally during this time.
- Add minced garlic and cook for 1 more minute. Remove from heat.
- Spread the beef mixture evenly in the prepared baking dish. Add green beans in an even layer over the top. Spoon mashed potatoes and use a spatula to spread them smooth from edge to edge. Sprinkle about 1 tsp of paprika over the top, then cover with the shredded cheese.
- Place dish on center rack and bake for 30-35 minutes, until cheese is melted, bubbly, and lightly golden.
- Remove from oven and let rest for at least 10 minutes before serving. This allows the layers to set up nicely.
- Prep Time: 10min
- Cook Time: 50min
- Category: Side dish
- Method: Oven
- Cuisine: American