Preheat the oven to 375 degrees F.: You will notice a warm, oven scent as it comes to temperature, which helps the top brown evenly once the dish goes in. Preheating ensures the cheese melts consistently and the peppers soften at the same rate as the interior heats through. A common mistake is not fully preheating, which can lead to uneven melting where the center remains cool while the edges brown too quickly. Make sure the oven racks are positioned so the dish sits in the center for even radiant heat.
Add the olive oil (make sure the oil covers the entire bottom of the baking dish, if not add more oil), now add the sun-dried tomato pesto, dried basil, dried parsley, dried oregano, dried dill, crushed red pepper, garlic and salt and pepper to a 9 x 13 inch or slightly smaller baking dish (I like using one of those oval dishes that is just a little smaller than a 9×13). To the baking dish add the cooked quinoa, the olives, artichokes and pepperoncinis. Toss well until all the ingredients are evenly distributed. Dollop the ricotta over the mixture and gently mix to combine.: As the oil spreads you will see it shimmer and smell fruity notes from the olive oil , this is the aroma base for the bake. Adding the dried herbs and sun dried tomato pesto into warm oil helps those aromatics bloom, releasing their oils and scent into the dish so the flavors are integrated rather than sitting on the surface. Stir gently with a spoon so the pesto loosens into the oil and coated bits glisten, this creates a fragrant bed for the other ingredients. Troubleshooting tip, if the pesto stays clumped, warm it slightly before adding, and ensure your garlic is finely minced or grated so it disperses without creating a raw garlic bite.
Overtop, sprinkle on the mozzarella cheese and then scatter the sliced red peppers over top. At this point it will seem like there are too many peppers, but this is fine. They will cook down. Place the pepperonis on top. Sprinkle on top 2-4 ounces of pecorino and another drizzle of olive oil. Bake in the preheated oven for 40 to 45 minutes or until the top is browned and the peppers have softened. Remove from the oven and garnish with fresh basil, tomatoes and more pecorino or parmesan. Cut and eat!: When you add the quinoa , it should be fluffy and separate, not gummy; the individual grains will absorb the herbed oil and pesto, becoming savory and glossy. The halved kalamata olives and chopped artichokes will punctuate the mixture with briny and tangy pops, and the chopped pepperoncinis contribute bright acidity. Gently toss these components until you see an even distribution so every scoop has varied texture and flavor. Avoid overmixing which can mash the quinoa and cause a pasty texture.
Toss well until all the ingredients are evenly distributed.: You will sense the mixture becoming homogenous, dotted with colorful bits of olive and artichoke. The sound of the spatula scraping the dish should be smooth, not sticky, indicating the oil is well incorporated. This even distribution is important so when you bake, the seasonings penetrate the quinoa and the cheeses melt evenly. A frequent misstep is adding cold components back to the dish which can chill the oil and prevent proper melding, so try to have everything near room temperature.
Dollop the ricotta over the mixture and gently mix to combine.: The ricotta cheese will appear as creamy islands across the surface, and stirring gently will create ribbons of soft creaminess. These pockets will melt slightly during baking to give luxurious, tender bites. After dolloping, pause to check texture, you want visible streaks of ricotta rather than a completely blended mass, because those pockets provide textural contrast. If you overwork this step the ricotta will disappear into the quinoa and you will lose that creaminess.
Overtop sprinkle on the mozzarella cheese and then scatter the sliced red peppers over top.: As you sprinkle shredded mozzarella cheese , watch how it starts to cling to warm spots and forms a thin, glossy layer. Scattering the raw sliced red bell peppers across the top provides bright color and will soften and sweeten as they roast, offering visual appeal and a tender texture contrast. It is normal for peppers to look abundant at this stage they will collapse and caramelize in the oven. Avoid burying the cheese entirely under a heavy pile of peppers, because exposed cheese browns more attractively.
At this point it will seem like there are too many peppers but this is fine They will cook down.: The peppers will release moisture as they heat, and you will hear gentle simmering sounds as juices bubble and mingle with the cheeses. That released moisture helps steam the quinoa slightly and soften the interior, while the exposed edges of peppers will char a bit and develop sweetness. If you are worried about sogginess, ensure the peppers are well spaced so steam can escape; overcrowding can sometimes lead to limp rather than caramelized peppers.
Place the pepperonis on top.: The optional pepperonis will begin to crisp at the edges and render flavorful oils that mingle with the cheeses. As they heat you will notice a savory, spiced aroma that complements the Mediterranean elements. They also provide textural contrast, crisping slightly while the interior remains tender. One pitfall is layering too many pepperonis which can make certain areas overly oily, so distribute them evenly for balance.
Sprinkle on top 2 to 4 ounces of pecorino and another drizzle of olive oil.: Freshly grated pecorino cheese adds sharpness and helps the surface brown and develop a savory crust. A final drizzle of olive oil encourages an attractive sheen and assists in browning. You will see small bubbles form as the cheese melts and the oil heats, and that visual cue means the bake is developing a golden top. If you skip this step the bake may lack some of the savory crispness that defines the finished texture.
Bake in the preheated oven for 40 to 45 minutes or until the top is browned and the peppers have softened.: As the dish bakes you will hear quiet bubbling, smell herbaceous, toasty notes, and observe the cheese transforming into a golden brown crown. The peppers will darken at the edges and the interior will become hot throughout. Use a small knife to check the center temperature to ensure it is heated through, common mistakes include underbaking which leaves cheese unmelted in the middle, or overbaking which can dry out the quinoa. Aim for bubbling around the edges and a well browned top.
Remove from the oven and garnish with fresh basil tomatoes and more pecorino or parmesan.: Pulling the dish out of the oven you will be greeted by a rich, toasty aroma. Fresh basil and halved cherry tomatoes added after baking provide perfume and bright acidity that balance the roasted richness. A final dusting of grated pecorino cheese amplifies savory notes and gives a finished polish. Let the bake rest for a few minutes before cutting so the interior sets slightly and does not spill when you serve.
Cut and eat!: The final reward is the first forkful that mixes warm quinoa , molten mozzarella cheese , briny kalamata olives , and the fresh zing of cherry tomatoes . Savor the interplay of textures and flavors, and if reheating leftovers, do so gently to maintain creaminess. Avoid refrigerating without covering, as exposure can dry the surface and change the mouthfeel.