Add the avocado oil to a large cast iron skillet set over medium/high heat.
When the oil is fragrant and begins to sizzle, add the corn to the skillet.
Mix the corn with the oil and let the corn sauté in the pan for 2-3 minutes without stirring it around.
Sprinkle the corn with taco seasoning, stir, and let the corn sauté until it begins to caramelize and brown, about 3-4 more minutes.
Remove the pan from the heat and transfer the corn to a large bowl.
Add the red pepper, onion, jalapeño, and cilantro to the corn and mix well.
In a separate small bowl, make the sauce. Add the Greek yogurt, mayo, red wine vinegar, salsa verde, lime juice, salt, and cayenne pepper. Whisk together until the sauce is smooth.
Fold the crumbed queso fresco into the sauce.
Pour the Greek sauce over the corn mixture and fold all of the ingredients together.
Season with salt and pepper to taste and garnish with cilantro and optional jalapeño rounds, lime wedges, and a sprinkle of crumbed queso fresco.
Serve warm or cover the salad with plastic wrap and refrigerate for at least 1 hour to serve chilled.