Pulse the cauliflower in a food processor 15-30 seconds, or until the florets look like small grains of rice.
Heat the oil in a large nonstick skillet over medium-high heat.
Add the cauliflower, green onions, garlic and chili. Cook, stirring frequently, 7-10 minutes, until the cauliflower turns light golden brown.
Add the kale to the pan. Stir and cook 1-2 minutes, just until the leaves wilt and turn bright green. Turn off the heat. Stir in the Genova Yellowfin Tuna and lemon juice and serve.