Was just coming in to post the same thing! Similar age, also spoon refusing. She did take spoons, we were having porrige, yoghurt, weetabix, I was making lovely dinners and mashing them a bit, mixing it all up with finger foods and then she just point blank refused to take a spoon.
She loves most vegetables and fruit. I chop strawberries into quarters, that's a firm favourite and she's getting pincer grip so things like raisins can be given now, and peas. I give her toast and cubes of cheese too.
But like you, I was concerned about the variety so reading the tips on here is a big help. I was mostly concerned that she's not getting enough protein and fat because she favours fruit and veg. I don't want to discourage that at all (she cried for more fruit when I gave her a rusk, want to embrace that for as long as possible!) but I have been trying to look for ways to get more high calorie food in too.
My suggestions to add would be - eggy bread and scrambled egg. Also, try making vegetable fritters, I have made courgette ones, sweetcorn ones and bean ones so far. You can batch make, have them in the freezer and just defrost a few at a time.
Also, things like parsnip, carrots, potato, sweet potato cut into chip size and boiled or roasted go down well here.
I've read that you can cook chicken breast and cut it into small portions and they can eat that too. Other meats are apparently good - slow cooked beef pulled into small pieces is meant to be easy for them to eat.