1 pkg. lemon cake mix
1 egg
2 eggs
1/2 c. melted butter
1 (8 oz.) pkg. cream cheese
1 pkg. Pillsbury buttercream lemon frosting mix

Combine cake mix, butter and 1 egg. Stir until moist. Pat into 13x9-inch pan greased on bottom only. Blend frosting mix into softened cream cheese. Reserve 1/2 cup for frosting baked bars.

Add 2 eggs to remaining frosting mixture; beat 3-5 minutes. Spread over base. Bake at 350 degrees for 30-40 minutes. Cool; frost.