We use jars, looking for those with lower salt levels. I always dilute it down with soft cheese for oldest and olive oil or pure spread, who has problems with obvious cow dairy for my 10 month old.
Cheesy pasta peas, pasta spirals, peas, pesto and cheese is a favourite in our house and we have it atleast once a week.
We also like roasted pepper pesto, no so salty as dried tomato pesto and is great mixed in with some cold sausage, cherry tomatoes and goats cheese. Little and not very often is how we incorporate it