Possible Clues:

• Chip topper
• Chipotle option, for short
• Green stuff in burritos, familiarly
• Avocado dip, slangily
• Green stuff, for short
• Avocado dip, briefly
• Avocado-based topping, for short
• Dip for chips, for short
• Avocado-based dip, for short
• Green stuff on a taco, in brief