I get you OP, I feel like it’s a lot sometimes prepping 6 meals a day (3 for adults plus 3 for baby) trying to cook anything with a baby is a struggle. Also have a tiny freezer so very hard to batch cook. I get what people are saying just feed them what you eat but to be frank I don’t want to eat baby friendly food the whole time. I’m making enough sacrifices in my life. We eat a lot of rich, spicy, salty & crunchy foods that are difficult to adapt for a baby. Adding salt after isn’t the same.
IMO toast or crumpet is fine for a lunch esp. with some avocado which is very nutritious. You could also add a thin scraping of a smooth nut butter. I probably wouldn’t rely on that for 2 meals in one day though.
So lunches are often not a ‘meal’ as such more a collection of different foods. I don’t think they need to go together in the same way as an adult meal as it’s just about introducing different flavours & textures so often what I feed her is quite random. Quick & easy ideas if you have a microwave (or I just do very quickly on the hob as don’t have a microwave atm):
potato & veggies mashed with a bit of cream cheese
A quick one I do is tinned mixed beans/bean salad (make sure no added salt). Mash or blend them & add vegetables on the side.
eggs are quick, you can boil the night before then mash with a fork. Add some milk if needed.
tinned tuna is an easy way to add protein but they shouldn’t have it more than 1 or 2x a week I think (nhs have guidance on this)
sweet potato is really quick to steam & very nutritious
couscous just done with the kettle, just pour over hot water in a bowl with a plate on top to just cover the couscous, add microwaved veggies
If we have meat or fish for dinner I just put some aside for the next day for her and add to some from the above.
Bags of frozen pre-prepared vegetables can be a lifesaver.
I also think there’s nothing wrong with a jar or sachet now & then when you’re up against it as long as it’s not all they eat. They’re usually organic and actually very nutritionally balanced just no texture and pretty bland.
Another thing we do when cooking dinner in the evening is just have one extra pan on with lentils, chickpeas or pasta, that can then form the base for her lunch the next day.
I also think yes a balanced meal is carbs protein & veg but when they’re eating so little it’s ok if one meal is more carbs and one is more protein, always with some fruit or veg.
I will caveat my baby loves eating and rarely refuses anything so that definitely makes it easier!