Preheat your oven to 350.
In a medium mixing bowl, combine the sausage, chopped red onion and grated cheddar cheese. Use a wooden spoon to mix it all together thoroughly.
On a floured work surface, arrange the rolled-out biscuits. Spread about a tsp of the mustard over each biscuit, leaving the edges clean. Form a small mound of sausage with your fingers (about 2 Tbs each) and place in the enter of each biscuit round. Fold the edges in and roll up to create a little biscuit roll. Cute, right? Place on a baking sheet seamside down. Repeat with the remaining biscuits. Brush the egg wash over the tops of each biscuit roll and sprinkle with the sesame seeds.
Bake anywhere from 25-30 minutes, until the rolls are puffed, golden brown and perfect.
Serve immediately!
Makes 16 biscuit rolls.
