In a large pot, combine 2 cups water, 1 cup salsa, 1 tsp garlic salt, 1/2 tsp ground cumin, and the juice of 1/2 lime. Bring to a boil over high heat.
Once boiling, stir in 3 cups instant, quick-cooking rice. Immediately remove the pot from the heat, cover with a lid, and let sit 5 minutes (or until the liquid is absorbed).
Uncover and fluff the rice with a fork. If liquid remains, re-cover and let sit a little longer until absorbed.
Return the pot to the stove over low heat. Add 1.5 cups warmed taco meat and 1.5 cups shredded taco cheese blend, stirring to combine.
Cook over low heat, stirring frequently, until the cheese is fully melted and the mixture is heated through.
Remove from heat and serve.