Hi Kelly!
Those were all foods we started with too. You can also try giving him a spoon of yogurt (try Jalna or Mundella) to feed himself with. So load the spoon and pass it to him. Or let him try it from the bowl with his hands!
At 7.5 months he might also like pasta eg penne or spirals.
Our DD is a great eater and she caught onto BLS very quickly. But I know other girls who post in here have bubs that go up and down with their eating, so hopefully someone else can give you some advice.