@mistification you are me 😃
I've also done all that, though we were already eating around 3 vegan batch cooked things a week.
Beans, nuts, avocados, seeds, mushrooms, hummus, saukraut, salads/ leafy greens, steamed broccoli, yogurt, kefir. I also eat some cheese, hard Italian particularly.
Tofu and tempeh in the air fryer with cherry tomatoes or any other veg is my latest go to. Roast salmon, tinned sardines, tinned mackerel. (Sainsburies organic tofu is quite cheap.) Eggs are great.
I grind up flaxseed in the coffee grinder and freeze, add a couple if tablespoons to my porridge with frozen berries and yogurt, nuts and seeds.
Proper coffee is also full of polyphenols. Decaf is also good. Green tea, normal black tea. Dark chocolate. Cacao in water or milk, add cinnamon.