To make the sauce, place the bell pepper, chiles, tomatoes, onion, garlic, salt, paprika, oregano, tomato paste, olive oil and lemon juice in a food processor or blender. Process until combined and mostly smooth. Transfer to a large saucepan and heat on medium-high heat. Once the mixture starts to get bubbly, lower the heat and cook on medium-low for 30 to 35 minutes, stirring occasionally. Adjust the heat as needed. The mixture should lose most of its juices and be quite thick. Set aside.
To make the pit-zas, I like to use the broiler to do what follows, but you really must keep an eye on the pit-zas for it to work without scorching them. Alternatively, preheat the oven to 425°F (220°C, or gas mark 7). Place the pita breads on a baking sheet. Combine the spread with the miso, stirring well to thoroughly combine. Add 1 tablespoon (15 g) evenly on each pita bread. Top with 1 ½ tablespoons (27 g) of piri piri sauce. Apply the toppings that need to be cooked evenly on top of each pita bread.
If using the broiler, baking will take approximately 5 minutes. If using the regular oven, this will take approximately 10 minutes. Keep a close eye no matter which method you choose.
Serve immediately. There will be leftover piri piri sauce. Use it to make more pit-zas, or serve it with roasted potatoes, vegetables and more.
Notes
Alissa's note: I topped my pizzas with Kalamata olives and bell peppers, and they were delicious.
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