I think me and dh are quite lucky in that we already ate quite a basic/simple vegetarian diet so while I've obviously seen the things we buy regularly rise in price, they haven't seemed to rise to the same extent as many things people on here are saying and we've not had to "cut back" much from what we were used to because we were already pretty... cut back haha.
We buy our eggs from a local farm for £7 for 30 which appears to be a shit tonne cheaper than the supermarkets from what I have been reading on here. They are fresh as hell- often laid on that same day and a bunch of them are massive. The lady we order from even delivers them to us?
We have scrambled eggs or poached eggs for breakfast/brunch a lot, and regularly have just an omelette (with cheese & mushrooms ) for evening meal with salad. I buy biggish blocks of the basic supermarket cheese for around £4.
We have jacket potatoes with beans, cheese and salad regularly for an evening meal. I think jacket potatoes are 24p each in aldi, aldi beans around 50p.
I make lentil daal a lot- easy, yummy and super cheap. I never buy premade/microwave rice and just buy the cheapest basmati rice that you can find at any supermarket. I used to be really shit at rice and so never wanted to make it, but I learnt a super easy way to make it which is no faff so now I have no excuse to buy the microwave stuff (which is ££ and I think has a funny taste anyway)
Chickpea and kale curry is a regular meal for us and I sometimes triple the recipe and make a big pot for DH lunches. It was actually a "Gousto" meal box recipe i got ages ago I think. 1 onion, 2 cans of chickpeas, bag of kale (or spinach) garlic, ginger, tomato paste, chillis, curry powder, coconut milk or natural yoghurt. Tastes great and is cheap(ish).
Veggie chilli using lentils and mushrooms chopped really finely as the main bulk (or sometimes veggie mince when it's on offer- tho still cheaper than meat when it's not on offer) and then adding peppers (from frozen- fresh have become expensive!), tomatoes, a can of black beans, spices etc.
For vegetables and salad I tend to stick to the cheaper stuff and what is in season. Like, sure I like asparagus and fennel but uh, frozen green beans are currently less than £1 a pack in aldi so I'll make do with those 😂 I buy tenderstem broccoli when it's on 3 for 2 or reduced and put them straight in the freezer and cook from frozen. Or just regular frozen broccoli is okay- I use it to make soup OR put on a baking tray and roast in the oven which is way nicer than boiled imo. Frozen cauliflower can be done in the same way.
We eat a lot of salad as a side to all our meals, and I just forego the more expensive stuff now. Sure, this salad may be slightly better with sliced peppers but they're expensive. lettuce and spinach, tomatoes, olives from a jar, cucumber, red cabbage is great sliced very finely in a salad. A handful of frozen edamame beans is a recent and not too expensive addition (defrost for 5 mins in a cup of hot water). Dressing is oil and a squirt of lemon juice or balsamic vinegar. Sometimes crumble over feta/Greek cheese.
Regularly just make a salad with grilled halloumi on top for evening meal. Halloumi is £2.15 a block in aldi right now which is so much cheaper than anywhere else.
We don't eat a tonne of fruit and don't need to. Most fruit now a days isn't really that great for you to be eating loads of it to be honest. Sometimes buy frozen blueberries and raspberries and eat with natural yoghurt as a snack or breakfast. Bananas and apples for DH sometimes. If there's anything "nice" or fancy in the reduced bit I might buy it for pudding on that day but it's not a regular in our house.
A "treat" or weekend meal for us might be one of those "extra special" pizzas from aldi , shared with a side salad, coleslaw and sometimes homemade chips. Or burgers and homemade chips. Some nice buns, veggie burgers, cheese on top, salad and chips from a couple of potatoes.
I don't buy tonnes of snack things... I think if it becomes a habit then it'll become a habit. We don't snack a tonne and don't feel like we need to. If you make sure your meals are filling and have enough calories for whoever you are feeding then snacking all the time isn't needed.
If we do feel more snacky than usual then natural yoghurt (I buy the big basic ones from aldi) with frozen blueberries, dark chocolate (aldi), cubes of cheese cut from the big blocks, hummus with celery/cucumber/carrot sticks. I sometimes make oats & banana "cookies" or homemade granola bars. A small bowl of porridge. A piece of toast. Peanut butter with apple wedges.
If I ever buy the premade snacky items from the supermarket then it's because they are on offer. Nice yoghurts I sometimes get if they are on offer, fancy granola bars or whatever.
My favourite things as an evening treat are solero icecreams but I will only buy them if they're on offer.
Also.. don't sleep on tofu !! Great protein and you can regularly get it on offer and when it is I buy a bunch and freeze them. Cube it and stir fry it, or pop in the oven or air fryer. Great in stir fries or curries. You can crumble it directly into a frying pan and season and use it in tacos or anything that you might use mince for. Even as a scrambled egg replacement. We eat a lot of tofu. Ignore if you have a soy allergy.
I only buy cleaning products on offer /home bargains. Toilet roll I buy in bulk from "who gives a crap". I realise not everyone is in a position where they can drop £40 at once for toilet roll, but if you can then I have found it's saved me money. I only order once every 5 months and I used to spend more than that a month buying it in my weekly shop or at the petrol station when we ran out unexpectedly etc etc.
Anyways.. this comment is too long.