“Spread” as in “table groaning with food” I’d accept as potentially being corruptible to “spreadable” as in a “meal thing” (and wholly unacceptable as a result). “Spread” as in something to spread on bread is not a meal and not at risk of being corrupted to “spreadable” as in a “meal thing”.
If I’m going to paint myself into a corner as a grumpy old pedant, I’m going down all guns blazing! 
(Snackable, however, does border on the edge of being a moral dilemma.)
