Shrimp Saute on Cauliflower Rice
1 cup chicken stock, divided 1 large tomato, diced 1 lime, juiced, divided 1 onion, diced 1 pound large shrimp, peeled and deveined 1 tablespoon chili powder 1 tablespoon dried oregano 1 tablespoon garlic powder 1 tablespoon ground cumin 1 teaspoon olive oil, or as needed 2 Fresno peppers, diced 2 tablespoons coconut oil, or as needed 20 baby bella mushrooms, diced 3 cups fresh spinach 3 tablespoons almond flour salt and ground black pepper to taste ½ head cauliflower ½ tablespoon dried tarragon