Process the cauliflower into rice-sized pieces in a food processor fitted with a shredding blade.
Heat olive oil in a large skillet over medium heat. Add the ginger and stir for 1 minute.
Add the carrots and onions; sauté for 5 minutes.
Stir in the chicken and cook for 2 minutes.
Add the Tamara, sriracha, and sesame oil to the pan; stir for 1 minute.
Remove the mixture with a slotted spoon and transfer into a large bowl.
Add the cauliflower to the pan and cook through.
Stir the chicken mixture back into the pan and toss with the cauliflower.
Garnish with scallions.