Blend all ingredients for spicy ranch dressing together in food processor or blender until smooth. Add more milk to thin if needed. Taste for heat, can add jalapeño seeds for more. Set aside.
In a small skillet over medium heat, add butter or olive oil. When warm, add corn and sauté until golden, about 2-3 minutes. Remove from heat and let cool.
Create salad by layering lettuce, sliced red onion, cotija cheese, cooled sauteéd corn, tortilla strips, cilantro and avocado. Drizzle spicy ranch over top, reserving any leftover. Toss gently and serve!
Keyword mexican, ranch dressing, salad, side salad, spicy