In a large saucepan, heat olive oil and add chopped peppers, onion, and garlic; cook until starting to go soft.
Add diced tomatoes and tomato paste; stir and simmer ~ 5 minutes.
Add dried shiitake, oregano, sambal oelek, salt, and pepper; simmer for ~ 5 minutes.
Add grated cheese, and mix until the cheese is completely melted.
Simmer for 30-60 minutes, stirring frequently.
Notes
This pasta sauce goes well with all types of pasta noodles and freezes well. For an extra comfort food meal, mix the pasta sauce with cooked (al dente) penne or similar noodles, place in casserole dish, cover with parmesan cheese, dot with butter and bake at 350 for 45 minutes. Note: you can add meat to the sauce if you desire.