I have two DDS 5 and 2, there's not a huge list of guaranteed eats for the two, because their each fussy about different things. But my regular meals are.
Soup- carrot and red lentil, tomato,, vegetable, pea and ham, chicken, potato and leek. I HATE soup. But DDS and dh love it, so we have it at least one night a week, big bowls with fresh bread. It's almost always made in the slow cooker and blended so not quick to cook but quick to make.
As everyone has said- spag.bol
'red' rice, rice with chopped cooked carrots, peas, and half a tin of tomatoes (Dh and I have spices and coriander in ours following the actual Thomasina miers recipe)
casseroles- always include at least two veg and can be slow cooked/pressure cooked- pork and apple casserole, chicken and butterbean casserole, beef and onion, etc.
Butter bean and cheese burgers from BBC good food
Potato pancakes and meats / chopped picnic veg
Cheese and carrot toasties ( I grate the carrot and call it orange cheese)
Carbonara
Carrot and broad bean risotto
lasagne- hfw does a mushroom and kale version that it really lovely with added chicken breasts , but other.lasagna too.
Dhal and flatbread- completely under spiced for DDS, we add extra for us.
Meatballs with pasta.
Pizza