Pacman eating (destroying) pellets on collision!

We are trying to make our Pacman destroy pellets as he moves over them. We have this non-functional script so far. Any help would be appreciated!

 using UnityEngine;
 using System.Collections;
 
 public class EatPellet : MonoBehaviour {
     
     public int smallPellet = 10;
     public int bigPellet = 100;
     public int score = 0;
     public int pelletCount = 0;
     
     public void onTriggerEnter () 
     {
         if (GameObject.name == "smallPellet")
         {
             score += smallPellet;
             pelletCount++;
             Destroy(gameObject.name("smallPellet"));
         }
         else if (GameObject.name == "bigPellet") 
         {
             score += bigPellet;
             pelletCount++;
             Destroy(gameObject.name("bigPellet"));
         }
     }
     
     public string toString () 
     {
         string totalScore = "Score: ";
         totalScore += score;
         return totalScore;
     }
     
     public void changeScreen()
     {
         if (pelletCount == xx) {
             Debug.Log("fullt");
         }
     }
 }