Remove the core from 1 medium head cauliflower and cut it into medium chunks.
Place a portion of the cauliflower chunks in a food processor and pulse in short 1–2 second bursts until the pieces resemble rice. Work in batches so the cauliflower does not become mushy; transfer each batch to a bowl.
Heat 2 tablespoons butter in a large skillet over medium-high heat until melted and slightly foaming.
Add 1 clove garlic, minced, to the skillet and cook, stirring, for about 30 seconds until fragrant (do not let the garlic brown).
Add all the cauliflower rice to the skillet. Season with 1/4 teaspoon cumin powder and a pinch sea salt and freshly ground black pepper. Stir to combine.
Cook the cauliflower rice, stirring frequently, until tender and lightly browned in spots, about 5–6 minutes.
Remove the skillet from the heat. Stir in 1 tablespoon fresh parsley, chopped; 1 tablespoon fresh basil, chopped; 1 tablespoon fresh coriander, chopped; and a squeeze of lemon juice.
Transfer the herbed cauliflower rice to a serving dish, garnish with pomegranate seeds, and serve warm.