Add cauliflower florets to a food processor or chopper and pulse till the cauliflower resembles small bits (like rice). Make sure not to go all the way or it can turn mushy. See picture for reference.
Heat oil in a pan and add onions, garlic and jalapenos. Stir fry for a few minutes till the onion is translucent and the garlic is fragrant.
Add tomatoes, cumin powder, paprika powder and salt to the pan. Cook the tomatoes for a few minutes till they soften. Add the diced bell peppers and cauliflower rice to the pan and mix well. Stir fry the cauliflower for 3-4 minutes till it’s tender.