Place the pot-sized spaghetti into a large stock pot or Dutch oven. Drizzle with olive oil.
Add the olives, minced garlic, artichoke hearts, chopped red onions, and halved cherry tomatoes directly into the pot.
Pour the marinara sauce evenly over the ingredients. Then add the sea salt, pepper, oregano, thyme, and vegetable broth. Gently stir to combine and evenly distribute the seasonings.
Bring the mixture to a boil over medium-high heat. Cover with a lid, reduce the heat to medium-low, and let it cook for 11-13 minutes, stirring once halfway through to prevent sticking.
Check the pasta for doneness. Once it’s fully cooked and the liquid has reduced into a flavorful sauce, remove from heat.
Serve immediately, garnished with fresh parsley and crumbled feta, if desired.