Heat the oil in a large skillet over medium heat.
Add the diced onion and cook for 3 to 5 minutes, or until softened and translucent.
Add the minced garlic and cook for another 2 minutes until fragrant, stirring constantly to prevent burning.
Stir in the cooked lima beans, corn, red bell pepper, water, lime juice, minced chipotle pepper, and salt.
Bring the mixture to a simmer and cook for 10 minutes, stirring occasionally. If the mixture looks too dry, add a splash more water.
Remove from heat and stir in the fresh cilantro.
Taste and adjust seasoning with more salt or lime juice if needed, then serve warm.