Start by cooking your microwave-ready potato packet according to the package directions—usually about four to five minutes. While they're cooking, I like to prep my other ingredients so everything is ready to assemble. Once the potatoes are tender, stir in the seasoning packet that comes with them and let them cool just slightly. This matters because you want them warm but not so hot that they begin cooking your eggs prematurely. I usually give them about two minutes to cool while I gather my other ingredients.

Take a 14 to 16 ounce microwave-safe mug and give the inside a very light coating of butter. This prevents sticking and makes cleanup effortless. Now chop those three cooled potatoes into bite-sized pieces—about half-inch chunks work perfectly. Layer these pieces into the bottom of your mug. They should fill roughly the bottom third of your mug, creating a sturdy foundation for everything that comes next.

In a small bowl, whisk your two eggs together gently—you're not looking for stiff peaks, just a uniform mixture where the whites and yolks are combined. Add your tablespoon of milk, which creates a creamier texture and helps the eggs cook more evenly. Pour this mixture into your mug with the potatoes. Now add your diced ham, shredded cheese, sliced green onion, and that pinch of salt. Stir everything together thoroughly so the ingredients are distributed evenly throughout. This ensures every spoonful has the perfect balance of flavors.

Here's the professional tip that makes this recipe foolproof: microwave on high power in 40-second intervals. After the first interval, stir gently. After the second interval, stir again. At this point, you'll see that most of your egg is starting to set, but there's still liquid egg visible. Microwave for a third 40-second interval without stirring—this allows the top layer to set properly. Check for doneness. The eggs should be completely set with no liquid egg remaining, but they should still look slightly moist and custard-like, not rubbery. Total cooking time is usually two to three minutes. If you have a lower wattage microwave, you may need to add additional 20-second intervals.

Remove your mug from the microwave carefully—it will be very hot. Set it on a heat-safe surface and let it rest for exactly one minute. This allows the eggs to finish cooking slightly from residual heat without overcooking. Serve immediately while everything is warm and the cheese is still melted. I like to grab a spoon and eat directly from the mug, which means fewer dishes. But if you prefer a plate, simply turn it upside down and slide your breakfast onto a surface where you can eat it more traditionally.