Smoked salmon in scrambled eggs, 1/3 avocado, a slice of toasted gluten-free bread, a few leaves of baby kale or spinach, orange juice (preferably freshly squeezed), and as many fruits you want, chopped into a plain yogurt. That's the ultimate breakfast for me. I like it so much, that I often have it for lunch or dinner too.
I would never touch oatmeal, because I'm celiac: three Canadian research papers have found that even GF oats are actually contaminated in the field, and even if not, oats contain the avenin protein that is chemically too close to gluten, and so many immune systems mistake it for it, and react badly. My gluten-free bread mentioned above would have only rice flour, potato flour/starch, and tapioca starch, but no other grain apart from rice (I react to all other grains).