Donna Miner's Pumpkin Cheesecake Bars

1 package pound cake mix
3 eggs
2 Tbsp margarine or butter, melted
4 tsp pumpkin pie spice
1 29-oz can pumpkin
1 14-oz can Eagle Brand sweetened condensed milk
1/2 tsp salt
1 cup nuts

Mix pound cake mix, 1 egg, margarine, and 2 tsp pumpkin pie spice on low speed till crumbly. Press into bottom of 9"x13" pan. Beat cheese until fluffy, gradually adding sweetened condensed milk, then remaining 2 eggs, pumpkin, 2 tsp pumpkin pie spice, and salt. Mix well. Pour over crust and sprinkle with nuts. Bake at 350 degrees for 30-35 minutes or until set. Cool, chill. Cut into bars. (May serve with whipped cream.)