Puree the strawberries in a food processor or your blender.
Lay down the fruit roll-up sheet in the dehydrator and spray lightly with nonstick cooking spray*. Spread the yogurt thinly over the drying sheet. Drizzle the pureed strawberries over this; use a toothpick to make marble effect. The measurements for ingredients are approximate; the overall goo should be about 1/4 inch thick. Dehydrate roughly 8hrs on 135. Cut into strips.
*if you have no dehydrator, spray cookie sheet with nonstick cooking spray. Lay down the ingredients as described above. Cook at lowest oven setting (usually 250) for around 4-6 hours. Cut into strips.
Also, I bet blueberries or cherries would be tasty as well!