On Monday night, I did my macaroni cheese for dinner and had a family portion and a 2 person portion to freeze which make great pasta bake dinners.
Pasta, cheese sauce, bacon chunks (this time was leftover from a joint, often its a packet of lardons), chopped and fried mushroom/onions/garlic, chopped peppers, frozen peas, chopped courgettes that cook in with the pasta for last 5 minutes - all mixed together.
Smoked fish cooked in milk, use the milk to make a white sauce, small florets of broccoli and the flaked fish in the bottom of an oven-proof dish, white sauce over it, top with mashed potato, a decent sprinkle of breadcrumbs and a generous handful of grated cheese.
Another one I do for freezing is roasted meditteranean veggies. Dice up veg into the same sized chunks - peppers, onions, tomatoes, courgette, (aubergines), French beans, whole garlic cloves, (peas). Marinate with olive oil, a dash of balsamic vinegar, salt, pepper, herbs (basil, oregano, rosemary and thyme are all good here) for a while (can be overnight). Can be roasted then frozen, or frozen then roasted. I start out with a massive bowl of veg, roast 1 tray with a roast dinner (great mid-week option with chicken thighs or legs and some halved potatoes) and freeze and leftovers from that. And pop the uncooked into another bag and freeze. The cooked veg are great to just throw into plain tomato sauce with pasta (and some meat if you like - cooked chicken, chopped sausages, bacon pieces etc), either as it is or as a bake. I have frozen the cooked veggies already mixed with the sauce too if I need something ultra easy.
Chicken and mushrooms in a white sauce (with some cream and white wine for flavor - cooking gets rid of alcohol) to have with rice, pasta, potatoes or baked under a pastry or mashed potato top. Tarragon is a really nice herb for this one.
If DD won't eat bolognaise, or rice - can you do a few things that she would eat in toddler-sized portions and the spag bol or curries or chilli for yourselves? I still keep a few M&S kids meals in the freezer for DD too as some nights she just doesn't want what we're having and its not worth the row at dinnertime.