No precooking the sausage as per another recipezaar cook worked great! After going through a lot of recipes, I combined several to come up with this one. I served these Christmas day and they were a big hit. The mushrooms themselves came out a perfect texture. I know a lot of people say this, but make more than you think you need. These were gone in minutes. It was so great to just pull them out ready to go and simply cook and eat. Saved me prep time on day before too by not precooking the sausage. I was using the bottom of the bag of my stuffing mix and had a little less than 1/2 c so I crushed up the croutons and threw them in. Timing is hard to say on the Prep, cleaning the mushrooms is the hardest and longest task to this recipe.