meal ideas

Hi, my son is 27 weeks old and I'm struggling with weaning. He's a brilliant eater when encouraged but adores his milk, he wouldn't be bothered if he didn't eat food yet but I want to start establishing a good feed routine as he still wakes twice a night for 6/7oz bottles which he drains and then is wide awake at 6/7am for another. What do you give your babies at this age and how much? Also any ideas to get him sleeping better through the night would be amazing. Thank you x