In mixer, beat eggs. Then add sugar and oil and beat. Add carrots and pineapple and beat. Whisk dry ingredients in a separate bowl and add carefully to batter. Stir in nuts.
Divide into three 9-inch pans or one 9x13-inch pan that's been sprayed with PAM and dusted with flour.
Bake layers for 30 to 35 min at 350 degrees until toothpick comes out clean. Bake 9x13-inch pan around same time and check. May need 5 to 10 min more.