I meal plan on a Saturday night and get food shopping delivered for just after I get home Monday.
Monday is always a quick/ pre made tea like stir fry/fresh pasta/something from the freezer like chilli
Also Monday night I cook jacket potatoes in the microwave while I'm doing lunches. Leave them to cool and put in the fridge for another busy night.
The night we have the jacket potatoes I'll put them in the oven on 200 ish for 20 minutes and they come out lovely and crispy. Breaded chicken steaks take the same amount of time and with cheese and beans it's a really yummy quick tea. Or we have with cheese and coleslaw and soup
One night we will usually have fajitas or tacos with varied meat/veg. While the hot stuff is cooking I'll make a batter to use later in the week for fish and chips or toad in the hole (brown sausages too for this)
Sunday whatever roast we have I'll put another joint in whilst we are eating so if we have chicken I'll do a ham and vice versa, we'll usually have this on Tuesday and depending how many of you there are it should do at least 1 meal if not some lunches too. Sainsburies ham and gnocchi recipe is lovely!
Whenever you make something that's fine to freeze like chilli make at least double and put some in the freezer for the nights you are tired and don't want to cook!
Once you get in to the swing of it you'll be fine