Moist, Mushroom Meatloaf Ingredients 2 cups mushrooms, minced* 1/2 medium yellow sweet onion, minced* 1 TBS minced garlic 1 tsp - I Can't Believe It's Not Butter spray 2 cups old fashioned rolled oats 1/2 cups almond milk 1/2 pound lean ground beef 1 pound ground turkey breast 1 cup chopped spinach 2 large egg