In a large mixing bowl, combine the mini saltines, Cheez-Its, and pretzels. Toss gently to mix all the crackers together, creating a delightful variety of textures and flavors.
Divide the mixture evenly into two plastic bags or large resealable containers.
In a small bowl, whisk together the oil and 1 1/4 packets of ranch seasoning (save the remaining seasoning for later use).
Pour half of the ranch seasoning and oil mixture into each bag with the crackers. Seal the bags or containers securely.
Gently shake and toss the bags to ensure all the crackers are evenly coated with the ranch seasoning mixture. This will infuse every bite with a burst of tangy and herby ranch flavor.
Line a baking pan with aluminum foil for easy cleanup. Empty one bag of the seasoned snack mix onto the pan, spreading it out evenly.
Sprinkle an additional dusting of ranch seasoning over the snack mix on the pan to intensify the ranch flavor.
Preheat your oven to 250°F (120°C). Bake the snack mix in the oven for about 10 minutes, stirring halfway through to ensure even toasting. Baking will enhance the flavors and give the snack mix a satisfying crunch.
Repeat the baking process with the second bag of seasoned snack mix.
