In a large skillet, heat oil and add onion, cook until onions are translucent.
Add garlic and red pepper to the onion and cook for 30 seconds.
Add tomatoes and Italian seasoning mix to the onion mixture. Reduce heat to medium-low and simmer for 15 - 20 minutes. (If the liquid starts to cook off, lower the temperature and cover with a lid).
Add clams and salt and pepper to taste and cook until clams are heated through, approximately 5 minutes.
Toss the clam sauce with the pasta and serve immediately.
Recipe by Premeditated Leftovers™ at https://premeditatedleftovers.com/?p=12066