Burger bar, Lochaline Ferry Terminal Ardnamurchan end of A884 (top venison burgers)
Burger bar at top of Glen Ogle (A84)
Powmill Milk bar (cafe to you non Scots) - Powmill A977 / A823
Burger Bar, Arrochar by the Esso station A83
Cafe, Southern end St. Mary's Loch A708
And for decent beers...
Clachaig Inn, Glencoe (Best Real Pub 07) 1 mile north of village on back road
The Mash Tun, Charlestown of Aberlour - On A95 (Good grub and posh digs as well)
The Harbour Inn, Ullapool, between shell garage and ferry terminal on sea front.
The Shore Inn, Lochgoilhead, B839
The Plockton Hotel, Plockton by Kyle of Lochalsh
The Applecross Inn, Applecross (that sticky out bit north of Kyle of Lochalsh)