Would really help if you said the things you do feel confident cooking so we can get an idea of your skill level?
Then we can suggest recipes/dishes to cook for you both
This is a good opportunity for you to improve your diet and health for you and your child's sake
It doesn't need to be onerous or time consuming necessarily and there are cheats and short cuts too, you just need to be careful with salt and additives.
But off top of my head some things that are easy are:
Scrambled eggs with a little grated cheese and toast fingers
Pasta with natural flavourings - butter, herbs, cream cheese, a home made low sodium tomato sauce with a few veggies thrown in - Tinned sweetcorn, diced peppers, carrots, mushrooms, courgette or aubergine that you've sautéed off
You could make a batch of sautéed veg then freeze in portions big enough for baby.
Steamed rice with peas and carrots
Tuna with corn and mashed potato
You could also batch cook thick soups, casseroles and stews that you've made low sodium, blend and freeze depending on how "chunky" he can cope with.
These take very little effort really and there's no reason you can't use ready prepared veggies and fresh meat (not processed, things like ready diced chicken, good quality mince)
Just from a quick browse on Tesco app I can see that you can get ready peeled and cut/prepared:
Carrots (I started buying carrot batons when Dd a baby, frozen they're a great teething aid!)
Broccoli
Cauliflower
Butternut squash and sweet potato (babies tend to love this roasted and puréed and dead easy to do)
Onions (I always have frozen diced onion in as chopping them makes my eyes agony with the tears thing and I can't see!)
There's a stir fry "medley" :
Baby corn, mangetout, tenderstem broccoli, salad onion and chilli.
You can use all but the chilli for baby - (again frozen baby corn great for teething they are fine eaten raw)
Green beans
All ready to cook
And as pp say it doesn't have to be a "proper" recipe every time as long as you've got all food groups covered through the day nothing wrong with cold plates, sandwiches, wraps that kind of thing
Dd is 19 now and I remember (vaguely) when little she was quite happy having a plate with diced cooked chicken, carrot batons and bread and butter or toast on the side - carbs, protein and veg! Sorted! Yogurt or fruit or both for after - doesn't need to be immediately after if they're not hungry at that point, it can be "supper" before bed