Blueberry Pinwheel muffins

2 cups biscuit mix
2 T sugar
2/3 c milk
Grated rind of 1 small orange
¼ cup melted butter
1 can blueberries, drained
½ t cinnamon
1/3 c chopped nuts
1/3 c brown sugar

Mix biscuit mix and sugar. Stir in milk and orange rind. Stir until dough is smooth. Roll out dough to oblong 10x18. Brush dough with melted butter. Sprinkle remaining ingredients over dough. Roll like jelly roll, starting at 18” side. Cut bake at 425°F. 15-20 minutes.