***See the "Healthy Baked Oatmeal Recipe" notes below for how to make this even more nutritious and increase digestibility.
Make this up to 2 days ahead, or longer is fine if you cover it well then toss it into the freezer for later.
Mix wet ingredients and dry ingredients separately, then stir together. (If I'm in a hurry, I just throw it all in and mix well!) Then stir in the fruit or nuts of choice--just mix and match with whatever sounds good to you or whatever you have on-hand.
Pour into a buttered 9×13 pan.
Refrigerate or freeze until you're ready to bake it. You can set it in your oven the night before with the auto-bake feature on so you wake up to the delicious aromas in the morning. Don't forget to make an extra pan for your freezer, you'll be SO happy you did when you've got a busy morning. Or give one to a friend!
Bake at 350* for 45 minutes, depending on your desired consistency. If you like it extra moist, bake it for less time. I think 45 minutes is just right.
Serve with butter and a little more real maple syrup if desired, but it's really good all on its own!