Mashed Potatoes with Savory Ground Beef Gravy

Prepare the mashed potatoes:
Peel and quarter the potatoes, then place them in a large pot. Cover with water and bring to a boil. Cook until the potatoes are tender, about 15–20 minutes. Drain any excess water, then mash the potatoes with milk and butter. Season with salt and pepper, cover, and keep warm.
Cook the beef gravy:
In a large skillet, brown the ground beef over medium heat, breaking it apart with a spatula. Drain excess fat.
Add aromatics:
Stir in the diced onion and minced garlic. Sauté for 3–5 minutes until the onions turn soft and translucent.
Thicken the gravy:
Sprinkle flour over the cooked beef and onions, stirring well to combine. Cook for about 2 minutes. Gradually pour in the beef broth while stirring constantly to prevent lumps.
Season and simmer:
Add Worcestershire sauce, salt, pepper, and thyme if desired. Let the gravy simmer for 5 minutes, stirring occasionally. For extra veggies, mix in peas and carrots at this stage.
Serve:
Plate the mashed potatoes and generously spoon the ground beef gravy on top. Garnish with fresh parsley if you like, and serve hot.