In a large pot of water with 1 tsp of salt, cook large elbow pasta until al dente, according to package instructions. Drain, place the pasta back into the pot, and place to the side.
In a small pot, add butter over medium heat. Once butter is melted, add flour, and stir until it forms a paste.
Add buttermilk and shredded cheese to the pot. Add salt, garlic powder, black pepper, and cumin, and stir to combine. Continue stirring regularly for 5 minutes until the cheese sauce has thickened. It should still be slightly liquidy. Pour cheese sauce over macaroni and stir to combine.
In a medium cast-iron pan, heat a little olive oil over medium heat. Combine the soy sauce, honey, lime juice, garlic powder, salt, cumin, black pepper, and cayenne powder in a small bowl.
Add the thinly sliced chicken strips to the sauce, and stir to coat evenly. Add the chicken to the pan, and sear on each side for 5 minutes, or until it is cooked through. Remove the chicken from the pan, and place to the side.
Add 1 cup of pico de gallo to the macaroni and cheese and stir to combine. Serve macaroni and cheese in individual bowls, and top with seared garlic lime chicken, sliced avocado, cilantro, and more pico de gallo. Mangia!