In a large bowl, combine the corn, tomatoes, and green onions.
Add the shredded cheddar cheese to the bowl.
In a separate small bowl, mix mayonnaise and ranch dressing until smooth.
Pour the dressing mixture over the corn and vegetable mixture.
Gently toss the salad until all ingredients are well coated.
Season with salt and pepper to taste.
Just before serving, add the Fritos to the salad for a crunchy texture.
Mix lightly to combine, ensuring the Fritos stay crispy.
Transfer to a serving bowl or plate for presentation.
Enjoy your delicious frito corn salad!