Mix the crushed red pepper, ground cumin, pepper, salt, paprika, garlic powder, and onion powder in a bowl. Coat the chicken breasts with the spice mixture.
Dip the spiced chicken breasts in flour, then in beaten egg, and finally in cracker crumbs. Ensure they are well-coated.
Fry the breaded chicken breasts in hot oil until golden brown and cooked through. This should take about 10-15 minutes.
In a small bowl, mix the salt, lime juice, olive oil, plain yogurt, minced garlic, chopped cilantro, chopped mint, and milk to make the cilantro lime ranch dressing.
Once the chicken is cooked, use it as the shell for the chalupas. Fill with shredded lettuce, diced tomatoes, shredded cheddar cheese, diced red onions, guacamole, and cilantro. Drizzle with the cilantro lime ranch dressing.
