Do you have a slow cooker Carol? They are ideal for busy people. You can make chilli, stews ( loads of veg) even soup. Just bung it all in, I freeze loads of my meals, a chilli or bolognaise I split into three, two for freezer. Try
@Jeandp suggestion re cauli rice, it really is a good substitute. I cook it to personal taste, and than whazz in my processor. I make shepherds/ cottage pie with a mashed carrot and swede topping. Maybe you could put aside a half day on the weekend and do a batch cook, it’s the only way for me. If I dither about what to have for tea I will end up having the wrong things. Luckily I do like to cook so don’t find it a chore, should I send you some food parcels?
😉 X