1 1/4 c. quick-cooking rolled oats
1 1/4 c. milk
1 egg
1/2 c. vegetable oil
3/4 c. firmly packed brown sugar, divided
3/4 c. semi-sweet chocolate chips
1 c. chopped pecans, divided
1 1/4 c. all-purpose flour
4 tsp. baking powder
1 tsp. salt