Take the plums, peaches, and nectarines and slice each fruit in half. Remove the pit.
Take each fruit half and slice it in half again leaving four total slices from each fruit.
Next, dollop about a teaspoon of ricotta into the middle of the sliced stone fruit, where the pit would be.
Take a slice of prosciutto and wrap it around each slice. Repeat until all the fruit slices have been filled with the ricotta and wrapped with prosciutto.
Serve alongside more sliced stone fruit, fresh herbs, and nuts.