This was an easy recipe and very tasty. I used 2 (very) large new potates and did not peel them. I sliced them in the food processor and cut out the par-boiling to reduce preparation time. My mother cannot eat fresh onions so I substituted dehydrated onions and also used evaporated skim milk in place of the 1% milk. I baked it at 350 for 3/4 hour. It fed 4 adults with loads left over, and the lefts overs were tastier than when it first came out of the oven. I would definately make this again.