In a large roaster pan, mix cereal, crackers, pretzels, and corn chips. Set aside.
In a small microwavable bowl, microwave butter, uncovered on high about 40 seconds or until melted. Stir in lime juice, lime zest and seasonings. Pour over cereal mixture, stirring until evenly coated. Bake at 250º for 1 hour, stirring mixture every 15 minutes.
Spread out on wax paper, parchment paper or foil.
Cool completely and then store in resealable baggies.