Dough-wrapped chicken-apple sausages are best fresh from the oven, so bake one batch at a time and serve warm.
Preheat oven to 375°. Unroll crescent rolls; separate into triangles. Cut each triangle into 3 long triangles.
Place 1 sausage link on wide end of each triangle; roll up triangles around sausages, starting at wide end. Place, point sides down, on a parchment paper-lined baking sheet.
Brush rolls with egg yolk. If desired, stir together sesame seeds and next 2 ingredients, and sprinkle over rolls.
Bake at 375° for 14 to 15 minutes or until golden brown. Serve with Spicy Mustard Sauce.
Note: We tested with Aidells Chicken & Apple Sausage Minis.