Chopping one onion is hard? That's maybe a minute of work to add a lot of flavor. I don't generally do that for lunch, but I'll absolutely chop up a couple of baby carrots, chop a couple green onions, scramble an egg or two, and mix it in as I fry up some leftover rice. Add some soy sauce, a few spices, and you've got some serious flavor with 5-10 minutes of work.
The hardest part of that is having leftover rice on hand.
Anything that necessitates cleaning the knife, cutting board, and skillet is not lazy. Especially because in order to wash those things the sink has to be empty which means the dishes have to be done. That's a lot of pre and post reqs for "lazy".
Not that any of that is particularly hard. A meal with a chopped onion can certainly be fast and easy, but I couldn't argue that it's lazy.
If you're cooking for one person or two, it absolutely is lazy, unless the kitchen is a mess beforehand. But given that it's not, washing the knife and cutting board quickly right after you put the onions in the pan takes like 10 seconds, and it's time you would be standing there waiting anyway. You're not spending any extra time or doing almost any extra effort. And chopping itself will take you like a minute or two if you're going slow.
Yeah but that's a basic meal, good quality, not like, anything approaching award-winning, but you put some effort in it. It's not a lazy meal.
My (definitely not recommended) lazy meal is eating ramen dry because the effort to cook it is just too high right then. A classic one is a pb&j. You could keep canned soup on hand.
If a meal requires me to wash dishes beyond a single utensil and bowl/plate, it is not a lazy meal. Which is fine, yours sounds great. It's just not lazy.