ThrowFood.cs

using UnityEngine;
using System.Collections;

public class ThrowFood : MonoBehaviour {
    public GameObject food;
    public GameObject foodholder;
    public float ThrowSpeed;
    private GameObject _myGameObject;

    // Use this for initialization
    void Start () {
        _myGameObject = gameObject;
    }

    // Update is called once per frame
    void Update () {
        if (Input.GetMouseButtonDown(0))
        {
            GameObject tempFood=Instantiate(food,_myGameObject.transform.position,_myGameObject.transform.rotation) as GameObject;
            foodholder.GetComponent<FoodHolder>()._foodList.Add(_myGameObject);
            tempFood.rigidbody.velocity = _myGameObject.transform.TransformDirection(Vector3.forward * ThrowSpeed);
        }

    }
}