Combine ground chuck beef with Italian Seasoning, almond flour, minced onions, salt, pepper, Worcestershire Sauce, and 1 egg.
Use clean hands to form 4 oval shaped patties.
Cook the steaks in a pan with 1 teaspoon of olive oil on medium-high heat for about 4-6 minutes on each side until cooked through. Be careful to ensure each side of the beef has been fully cooked prior to flipping. If you flip the patties too soon they will fall apart.
Remove the patties, cover and set aside. You can drain excess fat from the skillet if you wish. I typically reserve some grease to make it easier to deglaze the pan.
Add butter to the pan and deglaze the pan.
Add the onions and mushrooms, cook for 2-3 minutes or until soft.
Add the broth, Worcestershire Sauce,salt, and pepper. Stir and deglaze.
Take 1-2 tablespoons of the gravy mixture and combine with the xanthan gum in a separate bowl. Stir until the mixture becomes thick.
Add the mixture to the gravy. Stir until thickened.
Taste the gravy repeatedly and adjust seasoning to taste to avoid bland gravy.
Add the beef patties back to the pan with the gravy and stir.