3 cups chopped yellow onions (2 large onions)
2 Tablespoons good olive oil
2 teaspoons kosher salt
1 teaspoon freshly ground black pepper
1 teaspoon fresh thyme leaves (1/2 tsp dried)
1/3 cup Worcestershire sauce
3/4 cup chicken stock
1 1/2 teaspoons tomato paste
5 pounds ground turkey breast (I used regular ground turkey)
1 1/2 cups plain dry bread crumbs
3 extra large eggs, beaten
3/4 cup ketchup
In a medium saute pan, over medium-low heat, cook the onions, olive oil, salt, pepper, and thyme until translucent, but not browned, approximately 15 minutes. Add the Worcestershire sauce, chicken stock, and tomato paste and mix well. Allow to cool to room temperature.
Combine the ground turkey, bread crumbs, eggs, and onion mixture in a large bowl. Mix well and shape into a rectangular loaf on an ungreased sheet pan. Spread the ketchup evenly on top. Bake for 1 1/2 hours until the internal temperature is 160 degrees F. and the meatloaf is cooked through. ( A pan of hot water in the oven under the meatloaf will keep the top from cracking.) Serve hot, at room temperature, or cold in a sandwich. I did not use the pan of hot water.