our family favourites are:
mixed halved veg sausages,potatoes(part cooked in microwave 1st),cubed squash and wedges of onion and tomato mixed in a tbs of oil and roasted at 170 -180 for @ 40 mins
potato (cooked),pea and cheese omelette with salad and crusty bread (dh and dd like this with left over spaghetti instead of potatoes but they are weird imo
)
veg curry,chilli,stew,pasta sauce are easy to make in bulk with whatever veg/herbs are in season and freeze. ..
mussels (out of their shells,the asda pack for £1 does 2 easily) in a spicy(paprika,chilli), lemony, tomato,garlic and onion sauce with crusty bread and a few oven chips
Catalan style fish and potato stew on a tomato,garlic and onion sauce base
and never forget the power of a crumble (freeze a load of topping)/semolina/rice pudding ,done when the oven is on,to fill em up!