In a large pot, combine olive oil, sweet potatoes, and potatoes. Bring to medium heat, stirring frequently, and cook for about 10 minutes until the vegetables begin to brown.
Add fennel, broccoli, brussels sprouts, turmeric, garlic, black pepper, and red pepper flakes (optional) and cook for another 3-5 minutes.
Reduce heat to low, add Maya Kaimal Madras Curry, and stir to combine well. Simmer for 45 minutes to 1 hour, or until all vegetables are fork tender.
Optional: while curry is simmering, add all Turmeric Rice ingredients to a pot, and cook covered for 30-45 minutes, or until all water is absorbed.