My first is apple, but our second is peaches and the berries sound nice, how about if you mix apple and the berries that way you'd get the colour and flavour of the berries but the more filling of the apple?
Almost anything can be used as a crumble to, any of those stale or crushed sweet biscuit/cookies are great, mix with a handful of oats, sunflower seeds and flax seeds and bake till browned and yummy.
Madmum I just use tinned peaches/pears, works for me. I drain the juice but not every drop, pop in bottom of the dish and add crumble and bake.
Frozen berries, don't tell and no one will notice especially if topped with a scoop of ice cream.
Personally I like custard on my crumble but my family like ice cream
In order to find his equal, an Irishman is forced to talk to God... Stephen Braveheart 
we aren't big dessert eaters so not up on cooking fruits etc
