Oatmeal. Pour in bowl with water/milk and nuke it for 3-4 min. Or you can do the whole overnight oats thing and have it ready with no prep in the morning.
I second oatmeal but I go with savory. 50g of oats, 250ml of broth/liquid.
Variation 1 is a spice mix that mimics a favorite rice pilaf recipe (maybe 1/2 tsp of Old Bay seasoning, some salt and pepper, a sprinkle of turmeric and coriander). Then add in protein, veg, cheese, whatever. That's my go-to most of the time.
Variation 2 is "pizza" style: a scoop of premade marinara, some broth to fill out the rest of the liquid, and a sprinkle of shredded mozz. Throw in some protein/veg that works (think pizza).
Variation 3 is "Mexican style," which I mostly do if I have some leftover carnitas or taco meat: change the spices to chili powder and cumin, cheese, of course.
Quick oats cook up in 2-2.5 minutes in the microwave. Total prep time is maybe 10-15 minutes.
Oh damn I never knew you could do oats like this. My wife recently went on an oatmeal kick and did overnight oats with peanut butter and milk but I had a real hard time with the texture/consistency of it.
It took me a moment to get used to it, because I had the traditional upbringing with oatmeal = cinnamon, sugar, etc. But it's not that different from mashed potatoes, polenta, or rice. I already had the pilaf recipe that was a favorite "go with anything" side dish, so I tried that first and stuck with it.
The large container is cheaper but I prefer the flavour of prepackaged units and it's easier. They are still much healthier than other breakfasts and the cost is still just about twenty cents per bag anyway.
If you have one cup of skim milk with your oatmeal, assuming the oatmeal has absolutely no sugar at all (which isn't the case), you'd be having 13 g of sugar. I usually like to mix in a spoonful of brown sugar with my oatmeal, adding another 5 g of sugar. Maybe you don't do that; everyone's different. Putting in half a banana would add 7 g of sugar.
A packet of Quaker cinnamon flavour instant oats has 10 g of sugar. If you have two packets, it is roughly equivalent to making regular oatmeal with half a banana (7 g), a spoonful of brown sugar (5 g), a tablespoon of peanut butter (1 g) and half a cup of milk (6 g)
Granted, the combination of making it yourself is a lot more nutritionally whole, but if we're just comparing sugar content, it's actually not that bad.
I found the nutritional label, which reports 10 grams of sugar per packet. That, to me, is reasonable. I did not look up the nutritional information of the cereal, but remember that sugar content isn't the whole story. The cereal is more or less deficient in nutrients whereas oatmeal isn't. Oatmeal is a complex carbohydrate.
As another example, if you had a banana and whole oats, no sugar, that meal would be obviously very healthy but nominally have 15 g of sugar.
'50% less sugar than regular Quaker® Instant Oatmeal Maple & Brown Sugar flavor*
*Sugar content (on 55g basis): Lower Sugar Maple & Brown Sugar: 7g. Regular Maple & Brown Sugar flavor contains 16g sugar.'
Certainly I agree oats aren't a nutritional vacuum like sugar cereal. But if that 16g is correct that is half a Snickers bar.