Preheat oven to 350º. Grease a 9"x5" loaf pan.
In a small bowl, combine margarine or butter, chopped nuts, sugar and cinnamon; mix well; set aside.
Separate biscuit dough into 20 biscuits; flatten each biscuits slightly.
Spread about 1/4 tsp. nut mixture in center of each biscuit.
Fold biscuits in half; pinch edges to seal.
Place biscuits folded side down in a greased 9"x5" loaf pan, forming 4 rows of 5 biscuits.
Spoon remaining nut mixture over biscuits.
Bake in 350º oven for 25-30 minutes or until golden brown.
Cool 5 minutes.
In a small bowl, combine powder sugar and milk; mixing until smooth.
Drizzle icing over warm loan.
Serve in slices or pull apart.