My 8 mth old has white and brown toast with butter and fruit spread (jam but no sugar), cream cheese, peanut butter (no allergies in family)and mushroom pate - the kind that comes in a tube. He loves them all. Other good "on the go" food for us are bananas, rice cakes, malt loaf (like a dense fruit loaf) pots of fromage frais, cubes of cheese, cooked pasta shapes, dry cheerios (loves to play with them on his high chair tray!)
Hope this helps,
Nell xxx