Blend mole verde: In a blender, blitz salsa verde, pumpkin seeds, cilantro, lime juice, oregano, cumin, and salt until mostly smooth. Set aside.
Sear the tofu: Heat 1 Tbsp oil in a large skillet over medium-high. Season tofu cubes with a pinch of salt; sear 2–3 min per side until golden. Transfer to a plate.
Sauté veggies: Add remaining 1 Tbsp oil. Toss in cauliflower; cook 4 min, stirring, until edges brown. Add garlic and romeritos/spinach; sauté 2 min until greens wilt.
Sauce & simmer: Pour mole verde into the skillet, scraping up browned bits. Simmer 3 min until cauliflower is fork-tender.
Finish: Return tofu, toss to coat, and warm 1 min. Adjust seasoning. Sprinkle with pepitas, cilantro, and a squeeze of lime.