I don't remember where I found this recipe, but it had been in my recipe box for quite awhile and I finally decided to try it. The original recipe makes 10 to 12 servings, so I kind of eyeballed the ingredients and measured to my liking for approximately 6 servings. I love mushrooms, so next time I make this I'll add another package. I added 2 tbsp of brown sugar because I like a slightly sweet tomato sauce. Feel free to omit it if you like your tomato sauce as is.