How do I add multiple items to a hitTestObject?

I have a horizontally scrolling flying game involving a character and diferent types of food moving across the screen from right to left which the character has to collect ("hit"). I have the hitTestObject working for 2 different food movieclips with one item belonging to a healthyList, and the other to a junkList.

The problem is I don't know how to add more items (movieclips) to each of the lists, so that I have for example 6 items in the healthyList and 4 items in the junkList.

Below is the code in my Engine.as file. The red highlighted text is the code that creates the problem. I thought that I just needed to add this line in order to add another item to the "healthyList" of food types, but I obviously have it in the wrong place or have the wrong code completely.

package

{

    import flash.display.MovieClip;

    import flash.display.Stage;

    import flash.events.Event;

    public class Engine extends MovieClip

    {

        private var numClouds:int = 5;

        private var healthyList:Array = new Array();

        private var junkList:Array = new Array();

        private var myFlying:Flying;

        public function Engine()

        {                   

            myFlying = new Flying(stage);

            stage.addChild(myFlying);

            myFlying.x = stage.stageWidth / 8;

            myFlying.y = stage.stageHeight / 2;

            for (var i:int = 0; i < numClouds; i++)

            {

                stage.addChildAt(new Cloud(stage), stage.getChildIndex(myFlying));

            }

            addEventListener(Event.ENTER_FRAME, loop, false, 0, true);

        }

        private function loop(e:Event) : void

        {

            if (Math.floor(Math.random() * 90) == 5)

            {

                var healthy:Carrot = new Carrot(stage, myFlying);

                var healthy:Broccoli = new Broccoli(stage, myFlying);

                healthy.addEventListener(Event.REMOVED_FROM_STAGE, removeHealthy, false, 0, true);

                healthyList.push(healthy);

                stage.addChild(healthy);

                var junk:Hotdog = new Hotdog(stage, myFlying);

                junk.addEventListener(Event.REMOVED_FROM_STAGE, removeJunk, false, 0, true);

                junkList.push(junk);

                stage.addChild(junk);

            }

        }

        private function removeHealthy(e:Event)

        {

            healthyList.splice(healthyList.indexOf(e.currentTarget), 1);

        }

        private function removeJunk(e:Event)

        {

            junkList.splice(junkList.indexOf(e.currentTarget), 1);

        }

    }

}

All help and advice very much appreciated.

Thank you!