If all else fails - beans on toast or jacket potato or fish fingers and peas.
But you realise right, that what your children eat will define their physical, mental and emotional well-being?
And you are feeding them crap. They'll probably become fat, sluggish and develop acne and you'll be first in the queue to get them diagnosed with adhd.
Never met a child who didn't like boiled potatoes with a dollop of butter.
Nor a roast dinner - you can still get a cheap chicken or cheap chicken cuts to put in the oven with your roast potatoes, onions - and boil some vegetables. And just mix the bottom of the pan with some gravy ganules disolved in boiling water. It's a 5 min work job and an hour of the oven doing the work.
And you know how to batch cook spag bol mix right? Just 250gm of mince and add stock cubes, tinned tomatoes, peppers, cellery, onions, with finely diced carrots and seasonally inspired parnips and/or aubergines and/or courgettes and/or mushrooms. Finely diced. They don't know the finely diced what they're eating. But you do. Freeze the leftovers and serve once a week.
Really tough day? Saussage and mash. Once your energy levels are up, after not eating all the crap junk food, add some onion gravy.
Summertime? Keep your potato salad to hand. Jamie Oliver, whose recipes I generally hate as "too complicated and that is not in my cupboard", has a simple cheap recipe that is good.
Just remember the meat and 2 veg rule. Cook a pork chop, sausage, pork belly, chicken piece and serve it with 2 vegetables - 1 x peas, sweetcorn, carrots, cabbage, beans, etc. And 1 x potatoes, rice, cous cous.
Think you're doing your children a disservice by cooking them boring meals? Nope, they'll eat when hungry. They might enjoy the occasional junk food. But their standard diet for life will be to opt for the healthy basic.
Raised three girls. They all like the occasional junk food. But now they have their own families. They've chosen simple home-cooked dinners to feed their children. All three of them in various ways (one of them loves trying recipes). But not one of them would buy an industrialised microwave dinner or fall back on a takeaway.