1 package whole wheat egg noodles, cooked
1 1/2 cups mushroom stock or beef stock
1 cup milk, divided
1/2 cup dry red wine
2 tbsp. flour
1 tsp. onion powder
1 clove garlic, minced
1 tsp. pepper
2 tsp. salt, divided
1 tsp. thyme
1 pound lean ground beef
1 cup diced baby portabello and cremini mushrooms
2 tbsp. butter