Cauliflower Tacos With Cashew Crema

Name: Cauliflower Tacos With Cashew Crema
Ingredients: 1 green chile (such as serrano), finely grated; 1 garlic clove, finely grated; ¼ cup cashew or almond butter; 3 Tbsp. fresh lime juice; Kosher salt; 3 garlic cloves, finely grated; ¼ cup grapeseed or vegetable oil; 2 tsp. ground cumin; 2 tsp. smoked paprika; 2 medium heads of cauliflower, cut into 1–2 florets; 12 6-diameter corn tortillas; 1 small white onion, thinly sliced; Sliced avocado, sliced radishes, cilantro leaves with tender stems, and lime wedges (for serving)