Don't be scared of tins and packets.
Tinned kidney beans, passatta, choice of spices and a tin or packet of frozen mixed veg or mixed beans and heat through on the hob - 15 min veg chili.
Sausage and mash with onion gravy. OK this may be a 20min cook if you boil the potatoes but quicker with frozen or left over mash.
Either put a pan of potatoes on to boil (no need to peel) or use frozen. How many tins will depend on the size of the family.
Start to cook the sausages in a large frying pan in a little fat to get some colour. Boil the kettle.
Finely slice an onion or get frozen chopped onion and once the sausage has colour add the onions, add a sprinkling of flour to thicken the gravy, you may need to add more fat, pour boiling water into the pan and bring to the boil.
I add a stock cube at this point but that's optional as is wine or cider.
Simmer while you make the mash.
Good old beans on toast, you can add cheese and/or bacon. I microwave the beans in a jug, so much easier to pour over the toast and to wash up.
'Picky dinner'
Just put out hams, cheeses, bread, pita bread, hummus, fruit, salads - everyone helps themselves, they can make sandwiches or just eat what they want. You can add in pies, sausage rolls, left overs or even a tray bake for hot veg.