Preheat your oven to 325°F (165°C) and gather your ingredients.

Heat olive oil in a skillet and sauté onions, thyme, salt, and pepper for 8-10 minutes.

Combine the sautéed mixture with Worcestershire sauce, chicken stock, and tomato paste in a mixing bowl.

In a separate bowl, mix ground chuck, the cooled onion mixture, bread crumbs, and beaten eggs gently.

Shape the meat mixture into a loaf on a parchment-lined sheet pan and top with ketchup.

Bake in the oven for 1 to 1 ¼ hours until the internal temperature reaches 160°F (71°C).

Let the meatloaf rest for 10 minutes before slicing and serving warm.