Easy peasy, but I've worked my way up to it over time. I don't count grams per day but number of plants in a day / week. Usually it ends up around 60 - 70 on a weekly basis. Not 80 grams each per day, but a sprinkle here, a spoonful there, across multiple different plant types (fruits, veg, grains, beans, tea, coffee, herbs, spices, etc.) all collectively adds up over time.
This is my typical day in the life.
Breakfast: Black tea or coffee (intermittent faster)
Lunch: Home made soup with cannellini beans, chorizo, cauliflower, onion, red pepper, chicory, cumin, garam masala, garlic, ginger, paprika, topped with a sprinkle of mixed seeds (pumpkin, sunflower, linseed etc.) and a glug of live cultured kefir. This was followed by a few blueberries and a small pear.
Dinner:
Starter: Small salad of rocket, cherry tomatoes, home-grown broccoli sprouts, cucumber, radish, sweetcorn, live cultured beetroot kim chi, live cultured carrot and cabbage kim chi, some home-grown broccoli sprouts, a small bit of avocado, spring onion, a teaspoon of natto, edamame beans, sprouted mung bean, sprouted chickpea and sprouted lentil, mixed herbs, rosemary and with a drizzle of extra virgin olive oil, spring onion, apple cider vinegar, sumac, black pepper, and mixed sesame seeds.
Main: Yellow lentil dahl with onion, cauliflower, pea, beef tomato, coconut milk, cumin, garam masala, garlic, ginger, paprika, fenugreek, mustard seed, etc. served with a quinoa and buckwheat mix topped with flaked almonds, sumac and a spoonful of kefir.
Other bits: A sheet of nori, a heaped teaspoon of nutritional yeast, a spoonful of mixed spice after meals. Maybe a bit of Lindor chocolate (my one remaining UPF addiction - but down to 5 - 10% total intake).
My top tip is having fruit and vegetables available in multiple formats - fresh, frozen, pickled, etc. so you don't always have to worry about eating up fresh stuff before it goes off.
Oh, and batch cooking - and absolute life saver. I set aside an afternoon and do big one every few weeks - a biodiverse set of curries, tagines, stews, pasta sauces, soups, etc. which I then live on for weeks.
That being said, I am single and don't have a family to please, so appreciate I have more flexibility than most!