Beat eggs with milk and salt in a small bowl. Heat 1 teaspoon oil in a small nonstick skillet over medium heat. Add the egg mixture and cook until the bottom is set and the center is still a bit runny, 1 to 2 minutes. Flip the omelet over and cook until set, about 30 seconds more. Transfer to a plate.
Toss kale with the remaining 1 teaspoon oil, lime juice, cilantro, sunflower seeds, crushed red pepper and a pinch of salt. Top the omelet with the kale salad and avocado.
1/2 vegetable, 2 medium-fat protein, 3 1/2 fat