Salmon darnes covered with a spoon of pesto and sprinkle of grated Parmesan, roasted for 15 minutes. As oven is on, roast baby potatoes to go with. And wilt spinach (open bag and pour into colander, boil full kettle of water, slowly pour full kettle over spinach, press out excess water before serving - do it last minute as it doesn’t stay hot long but spinach is perfectly wilted and not overcooked sogginess).
Chicken joints thrown into a bed of veggies and diced potatoes and thrown in the oven - could be seasoned with lemon/garlic/herbs for Greek, piri piri, plain breasts with a pocket cut into it for cream cheese and the breast wrapped in slices of streaky bacon etc.
Can do similar to above with lamb or pork chops or thick dinner sausages - throw in the oven, throw potatoes in as well. winter root veg or squash are good veggies to oven cook - or Mediterranean style veggies for a lighter option.
Chicken fajitas or beef tacos.
I batch cook family friendly curries - serve 1 portion to the family and freeze the rest in single serving portions to defrost as many as needed after dinner 1 night for the following day’s dinner.
Chilli con carne or veggie chilli (both also good to batch cook).
Italian herby sausages formed into meatballs to have with a jar of tomato sauce and pasta.
smoked fish and brocolli pie (mash topping). Cottage pie (mash topping). Beef stew as pie filling (pastry topping).
Chicken and mushrooms in creamy/white wine sauce as pie (pastry or mash topping) or as a sauce with rice or pasta.
Slow cooked stews and casseroles - beef and Guinness; pork and cider and white beans; coq au vin; chicken chasseur; Irish stew (lamb based).