Preheat oven to 400°F (200°C). Line two baking sheets with parchment paper.
Place cauliflower florets and corn on one tray, tomatoes on another tray.
Drizzle both trays with oil, sprinkle with salt and black pepper, and toss.
Roast for 25 min, or until tomatoes are blistered. Remove tomato tray.
Flip corn and toss cauliflower; roast another 15 min, or until cauliflower is tender. Slice corn from cob and set aside.
Heat 1 tbsp oil in a large pan over medium heat.
Add diced onion, jalapeño, and bell pepper with a pinch of salt. Sauté for 7 min, until softened.
Incorporate minced chipotle peppers and adobo sauce. Cook another 2 min.
Add roasted tomatoes, break up with a wooden spoon. Mix in roasted cauliflower and stew for 5 min. Stir in 2 tbsp cashew-lime cream.
Blend all cashew-lime cream ingredients until very smooth. Store in refrigerator.
Combine chipotle cauliflower mixture with your preferred burrito bowl components.