You are right, and I love your idea with oats (I used to force myself to eat oats for breakfast, instant-quacker-oats ptsd here)
I will def move on to 3 or 4 meals a day sometime in September, but for now I am doing well with 2 meals a day plus a snack (apple) around 6pm. I think that, because I won a shitty genetic lottery, I have a lower percentage of muscles than an average guy my height should have. I don't really need that much calories per day I think. Also working form home for the past few years, and less body movements overall = way less calories needed than I used to consumer pre-2020.
Overall, I think I consume around 1800 - 2000 cal / day.
Today I ate:
M1: grilled hawaiian chicken breast, lettuce salad, cucumber and tomatoes, one medium banana
M2: plain chicken breast, lettuce salad, cucumber, and tomatoes, one smallish banana
Evening snack: big pear
Milk with coffee/tea: 500 ml