I only do simple stuff and I batch cook to make life a bit simpler still.
My daily menu is similar to Pancita’s.
Breakfast: yogurt and fruit or bacon and eggs, or, if I’m late or lazy, a protein shake with vitamins
Lunch: home made soup, pea and ham, broccoli and stilton (no potato), Spanish chickpea and spinach, or if I’m feeling lazy, 50g smoked mackerel or cheese, and a fruit
Dinner: A portion of meat, sausages(good quality), burger, ham, bacon, fish, or eggs, and a portion of veggies, often mixed, sliced, and roast with olive oil, herbs and s&p, or stewed like ratatouille. Another favourite is fried/sweated onions and leeks: chop and fry the onion til it’s starting to golden, then add the sliced leeks, and lower the heat, and stir frequently with the lid on between times. (I’ve just realised I usually forget the salt and don’t notice!)
I’m also fond of steamed sprouts or broccoli. Sprouts with bacon is a really good combo, and broccoli is good in a pastryless quiche, too.
If I haven’t had my daily amount of protein I’ll have a protein shake for supper. I usually manage to get all this in 800 calories or a little over.
Myfitnesspal is a great help. I started out with my own spreadsheet, but now it’s just for back-up.