I struggle to do so as I have a number of intolerances, need to be gluten free and am generally fussy.
Alcohol - never as I have histamine intolerance. Haven't had any for around 5 yrs. Don't miss it.
Fish - my main source of protein. Either tuna or cod (the latter frozen without any batters etc), salmon occasionally, prawns often.
Meat - only chicken breast, haven't eaten red meat for 50 yrs.
Can't eat cereals, toast or anything like that, gluten free bread isn't nice. No nuts or seeds due to histamine and/or tooth issues.
Vegetables - certainly get 5 a day, usually more.
Fruit - hardly any due to intolerances. Will have a banana if I can get some that are neither too ripe nor unripe!
Pulses - yes if I remember, red lentils are the simplest and quickest to make.
Eggs - yep, try to have one or two per day.
Dairy - yoghurt daily, no milk, no cream, no butter (the latter 3 I dislike).
Mainly drink apple juice with occasional water.
No processed foods.
And after all that, have a variety of health conditions so even though for most of my life I ate well (better than I do now), it either wasn't the 'right' food or I am just doomed! 😂