Soak the bread in the milk for 2 to 3 minutes. Add in the beef and seasoning, mix well with your hands. Place the mixture onto a foil lined baking sheet and form into an even loaf (or use a loaf pan).
Cook in the oven to an internal temperature of 150 degrees using a thermometer. Then set aside to rest for 5 to 10 minutes before slicing.
Heat a non-stick pan on medium heat. Once hot, add the oil. Sauté the mushrooms, garlic, shallot, thyme, and sage until the mushrooms start to soften. Push the contents of the pan to one side. In the open side of the pan, sear the Salisbury steaks on both sides to get a crusty char. Then stir in the flour and stir everything together.
Stir in the Worcestershire sauce and broth. Bring to a simmer, then add the cream and green beans. Low simmer until the green beans are tender, the sauce reduces, concentrates in flavor, and thickens to a creamy consistency. Season with salt and pepper to taste. Remove thyme sprigs.
Serve with bread. Garnish with thyme.