Heat oil in a large skillet over medium. Add onion and sauté until soft, 4–5 minutes.
Add garlic and ginger; cook 30 seconds until fragrant.
Add ground chicken, turmeric, cumin, and salt. Break meat apart and brown, 6–8 minutes.
Pour in coconut milk, bring to a simmer, and cook 5 minutes to thicken.
Meanwhile, pulse cauliflower florets in a food processor until rice-sized.
Stir peas into the chicken mixture and heat through, 2 minutes.
In a separate pan, lightly sauté cauliflower rice 3–4 minutes until tender.
Serve chicken over cauliflower rice, squeeze lime, and sprinkle cilantro.