Crockpot Salisbury Steak

Our Crockpot has been getting a workout since the beginning of the year.  It seems when we ready to put it away another great recipe is found.  It is not that we don't have time to cook, it because we have found some great recipes.  I think that winter time is the Crockpot season of cooking and summer is the grilling season. The cold snowy days makes you crave warm comfort foods.  Now,  can I say I really can't wait for grilling season?  I am a warm weather type of girl, but comfort foods like this will get me through.

6 oz sliced mushrooms
½ onion, sliced
1½ cups beef broth (low sodium)
1oz package brown gravy mix (dry)
2 tablespoons ketchup
1 teaspoon dijon
2 tablespoons fresh parsley
2 tablespoons corn starch
4 tablespoons water

Beef Patties
1½ lbs lean ground beef
1 egg yolk
¼ cup minced onion
⅓ cup Panko bread crumbs
3 tablespoons milk
1 clove garlic
salt & pepper to taste

Place mushrooms & onions in the bottom of your slow cooker.
Combine beef patty ingredients and form 6 patties. Brown over medium high heat (about 3 minutes per side).

Layer beef patties over mushrooms. Combine remaining ingredients except water and cornstarch. Pour over beef and cook on low 5 hours.

Once cooked, remove patties and set aside.
Turn slow cooker onto high. Combine cold water and cornstarch. Stir into the broth and let cook a few minutes until thickened. Add beef back into the sauce to coat.

Serve over mashed potatoes or rice.