Slow-Cooker Ground Beef Stroganoff

Ingredients

• 2 pounds ground beef
• 1-1/2 teaspoons salt
• 1 teaspoon pepper
• 1 tablespoon butter
• 1/2 pound sliced fresh mushrooms
• 2 medium onions, chopped
• 2 garlic cloves, minced
• 1 can (10-1/2 ounces) condensed beef consomme, undiluted
• 1/3 cup all-purpose flour
• 2 tablespoons tomato paste
• 1-1/2 cups sour cream
• Hot cooked noodles
• Chopped fresh parsley, optional