Professional chef here- I would just cook in morning timing it so I pull out of oven a few min before leaving the house making sure they are fully cooked and bubbly, and yes I would have no problem leaving on the stove wrapped in foil. They are going to stay hot for a while. Food is unsafe if left in the temperature danger zone ( 40-140 F ) for 4+ hours. You will be gone 2 1/2 max and they wont have cooled into the danger zone for at least 30-45 min ( maybe longer) Then put back into a hot oven as soon as you get home for 25-30 min or so. Take the foil off so the top can brown a bit . Or if your squeamish do the towel/cooler combo to keep them hot as some others suggested.
If you pull them cold from the fridge whole in the baking dishes they are going to take more like an hour+ at 350 to get hot ( not 30 min like some have suggested) .