Spray a sheet pan with cooking spray and then cover with a layer of parchment paper.
In a large bowl, whisk together all ingredients.
Pour onto the pan, and top with any toppings you’d like!
Optional: you could add fruit, chopped nuts, chocolate chips, or a combination of those things. I like to do different toppings in different quadrants of the sheet pan, so that the people eating can choose their own adventure if they like one topping more than another!
Bake for 15-18 minutes or until slightly brown on the edges and cooked through in the center.