Its also just DH and myself, no kids. I do an online shop at Sainsburys for things I can't get at aldi because they price with aldi. For example, Sainsburys chicken thighs this week are the same price as tesco, but because I've bought them before, they often give you a better rate for regular products.
-I use this app because eating what is in season, tends to be cheaper https://www.eattheseasons.co.uk/
-I'm on this app where people share food for free. You sign up within your local area and can also ask for things. olioapp.com/en/
-Frittata. Eggs, some cream or milk then any veg you have. Tomatoes, ham and onions, left over roast veg, potato/spinach then served with a salad
-Baked potatoes
-If we have a chicken on Sunday it lasts us days. The chicken is used in sandwiches, pasta bake, stir fry and/or chicken sweet corn or chicken noodle soup
-When making a bolognese, I grate in carrots, courgettes, celery etc to bulk it out
-I bulk cook rice then freeze it. I've never measured the electric usage, but I doubt it costs as much as cooking multiple lots of rice each time I need it. It also saves time. Lastnight I defrosted 1 container of rice and made fried rice. I had 2 rashers of bacon, a tiny piece of cooked pork leftover, added frozen peas and corn, garlic, soy sauce, oyster sauce and scrambled an egg in the fry pan. You can add any veg or meat you have.
-Multiple pasta recipes are veggie or use little meat- puttanesca, carbonara (not traditional but I also add peas and/or mushrooms if I have them), mac and cheese with left over cheese, pasta alla norma or pasta all sarde using tinned sardines.
-Soups are also cheap. Generally I use a smoked ham knuckle or bacon then whatever veg I have in the fridge- swede, onion, potatoes, celery, carrots etc. Split peas make it thicker. I make a huge batch and freeze left overs in portions.