Choco-Chip Oatmeal Cookies

1 1/4 cup margarine or butter, softened
3/4 cup brown sugar
1/2 cup white sugar
1 egg
1 tsp. vanilla
1 1/2 cups flour
1 tsp. soda
3/4 tsp. salt
3 cups oats
12 oz. pkg chocolate chips
3/4 cup nuts, chopped
Bake in 375 degree oven for 9-11 minutes