Portobello Pizzas

Name: Portobello Pizzas
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: European, Italian, Mediterranean
Ingredients: Olive oil, for the pan; 1 lb ground chicken; 1 cup frozen riced cauliflower; 2 handful of baby spinach; 1/4 tsp garlic powder; 1/2 tsp oregano; Pinch of red pepper flakes; Salt + pepper, to taste; 1 (14 oz) jar pizza sauce; 2-6 large portobello mushroom caps*; Avocado or olive oil spray; Italian seasonings; Garlic powder; Salt + pepper; 2-6 slices of provolone cheese (1 slice per mushroom)