In a small saucepan, mix leftover meat with 2 teaspoons taco seasoning and 1/2 cup water and bring to a low simmer. Heat until just warmed through, stirring occasionally. This take about 5-10 minutes. Once warmed, squeeze half of the fresh lime over the meat and toss. This helps to truly brighten up the flavor.
In another saucepan, mix beans with 2 teaspoons taco seasoning and 1/4 cup water and warm over medium heat. Once beans are warmed, squeeze the remaining half of the fresh lime over the beans and stir well.
Warm up leftover rice or quinoa, or prepare according to package directions. Mix in salsa.
Build burrito bowl, by placing a scoop of cooked rice (or quinoa or cauliflower rice) in bowl. Top with warmed meat, beans, and desired toppings.
Use chicken or vegetable stock in place of water.
If using leftover taco or carnita meat, omit additional taco seasoning from meat and warm through.
If using flavored rice (like cilantro lime rice), omit salsa from rice, and just reheat flavored grain.