2Heat olive oil in a large skillet over medium heat. Add cauliflower and saute, stirring often to prevent it from getting too brown, until soft enough to mash with a fork, 8 to 10 minutes. Transfer to a large bowl, add Greek yogurt, and mash with a fork. Pour in chicken broth a little at a time, continuing to mash until fluffy and smooth. Season with salt and pepper.
3Cook ground turkey and garlic in a large nonstick skillet over medium-high heat until browned and crumbly, 5 to 7 minutes. Drain and discard grease. Stir in soup mix and flour until combined, then slowly add water and stir until creamy but not runny. Simmer until thickened, 2 to 3 minutes.