
Place the cauliflower florets in a food processor and pulse until the texture resembles rice. If you don’t have a food processor, use the large holes on a box grater to grate the florets into rice-sized pieces.
Heat the olive oil in a large skillet or sauté pan over medium-high heat. Add the garlic and onion and sauté for 5 minutes, until the onion is softened.
Raise the heat to high, then add the riced cauliflower. Sauté for 5-7 minutes, stirring occasionally, until tender but not mushy.
Remove from the heat and stir in the cilantro, lime juice, salt, and black pepper. Taste and adjust the seasonings as needed.