Cook the Rice:
In a medium saucepan, bring the water (or vegetable broth) to a boil. Add the rice and a pinch of salt. Lower the heat to a simmer, cover, and cook for about 15-20 minutes (or according to package directions) until the rice is tender and the liquid is absorbed. Once done, remove from heat and let it sit covered for 5 minutes.

Mash the Avocado:
While the rice is cooking, mash the ripe avocado in a small bowl using a fork until smooth. Set aside.

Combine the Rice and Avocado:
After the rice has rested, fluff it with a fork to separate the grains. Add the mashed avocado to the rice and stir until the avocado is fully incorporated, creating a creamy texture.

Add Cilantro and Lime:
Stir in the chopped cilantro, lime juice, and lime zest (if using). Mix well and season with salt and pepper to taste.

Serve:
Serve the avocado cilantro lime rice warm as a side dish or as part of a larger meal. It pairs beautifully with grilled meats, tacos, burritos, or as a filling in a burrito bowl.