Agree with you Bumble! I've only just started meal planning (why? Why? What was I thinking of before??) and I love love love it.
I have about a dozen things that I rotate. All quite traditional as my DCs are good eaters but not adventurous. I try to do one new thing every three weeks which isn't much, I know, but there's too much grumbling if there's too much novelty.
I plan on a Thursday for a Sunday delivery...I already will know what we are having on Thursday and Friday, and I make Saturday a 'using up day' so sometimes dinner is a bit random (2 fishfngers, a pork chop, 2 servings of lasagne that was leftover etc). People bid for what they want and actually everyone usually gets something they like. I only do this on Saturday as I have more time...I don't make a variety of stuff during the week. They have what's on offer or I can bung a baked spud in the oven if they really don't want it and they let me know in advance.
Once very two weeks or so I batch cook...but not extensively. I usually do a Sunday roast (at tea time, DH works during the day on Sunday) and whilst I'm doing it I fry up about 1kg of mince, onions, celery, peppers etc. I have 4 old ice cream containers and portion up 4 meals worth, adding a tin of tomatoes into 2 of the batches. This cools and freezes to make 4 'nearly ready meals' for the following fortnight. I defrost overnight and quickly tart up into spag bol. or chili or wraps or shepherd's pie.
I always buy a chicken and roast it on one day for a midweek roast, then make stock and soup for my lunches during the rest of the week. All leftover meat is for DC sandwiches (hungry teens...like to give them some good protein during the day or they stuff choc and crisps on their journey home from school/college.. Who am I kidding? They do this anyway. I am just doing damage limitation with my home cooked food!!)
Sun..roast gammon
Mon...left over cold meat and mash, pickles and salad
Tues..fish pie
Weds...wraps and salad
Thurs...toad in the hole, sweet corn
Fri...fish cakes, beans and chips
Saturday...use up stuff, cook a pizza and garlic bread to supplement if needed
Sunday...roast chicken
Puddings...fresh fruit (whatever's cheap), tined fruit, custard, apple crumble (homemade), yoghurts, vanilla ice cream (basics range)
Lunches...sandwiches and soup (from bones and leftover meat), occasionally crisps, fruit, small penguin style biscuit (from a basics range)
Snacks...pate, houmous, crackers, cheese, yoghurts, fruit, homemade cake, plain biscuits (rich tea style)
Nearly everything from a basics range except beans, ketchup, meat and bread.
Buy a few beers each week (12 of those small french style ones) for me and DH.
I think we eat really well since I've been doing this and there's hardly any waste. Spend about £50 a week now. Cost more at first as I had to build up my store cupboard and freezer to a good level. Only began on 1st sept and can see a real difference in costs, time spent etc. DCs really like to know what the plan is. I try to make sure they get their favourite meal once a fortnight but that's on the understanding that they eat everyone else's favourite without grumbling.