Trim each chicken breast and cut in half lengthwise into strips.
Spray the slow cooker insert with olive oil or nonstick spray and arrange the chicken strips in a single layer.
Whisk together 1 cup chicken stock, poultry seasoning, garlic powder, and onion powder; pour over the chicken.
Cook on high for about 3 hours, or until the chicken shreds easily with a fork.
When tender, drain the chicken in a colander and discard the cooking liquid; let the chicken cool a few minutes, then shred with two forks.
In a bowl, combine 3/4 cup Frank's RedHot, 2 Tbsp olive oil, 2 Tbsp Worcestershire sauce, 2 tsp green Tabasco, 2 Tbsp sweetener and the remaining 1/4 cup chicken stock to make the buffalo sauce.
Return the shredded chicken to the slow cooker, pour the sauce over it, and stir gently to coat; keep on high to stay warm while you make the cauliflower rice.
Trim cauliflower and cut into medium pieces, then pulse in a food processor with the steel blade until finely chopped, or grate with a box grater (or use two 10 oz packages frozen cauliflower rice).
Heat 2 Tbsp olive oil in a large nonstick skillet or wok over medium-high heat. Add the garlic cloves and sauté about 30 seconds until fragrant, then remove and discard the garlic.
Add the cauliflower rice and stir-fry until just tender, about 4 minutes (cook longer if you prefer it more done).
Season the cauliflower rice with salt and fresh-ground black pepper, turn off the heat, and stir in the sliced green onions.
To serve, divide the cauliflower rice into bowls, top with a generous portion of the buffalo chicken and sauce, and sprinkle with crumbled blue cheese.