Unstuffed Peppers

Name: Unstuffed Peppers
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: American, Mexican
Ingredients: Olive Oil, (as needed); 3 Peppers, (diced into large chunks (bell peppers)); 1 medium Onion, (finely diced); 3 cloves of Garlic, (finely diced); 1lb / 500g Ground Beef ((low fat, preferably 5%)); 3 tbsp Tomato Puree ((tomato paste in US)); 1 1/2 - 1 1/3 cups / 375-400ml Beef Stock; 1x 14oz/400g can of Chopped Tomatoes; 2 tsp Dried Oregano; 1.5 tsp EACH: Smoked Paprika, Cumin; 1 tsp EACH: Grounder Coriander, Chilli Powder ((hot or mild, work to spice preference)); 1/2 tsp EACH: Salt, Black Pepper ((or to taste, if stock is salty consider reducing salt)); 1/2 cup / 100g Long Grain Rice ((uncooked)); 1 cup / 100g EACH: Mozzarella, Cheddar; finely diced Fresh Coriander/Cilantro; diced Avocado ((optional)); Sour Cream ((optional))