Creamy butter beans simmered in garlicky marinara and crowned with bubbling mozzarella, with cottage cheese and Parmesan for lush richness. A fast, one-pan, pizza-inspired vegetarian dinner packing serious protein.
Position an oven rack so the top of your skillet sits about 4 inches (10 cm) below the broiler; set oven to broil.
In a large oven-safe skillet, heat 1 tablespoon extra virgin olive oil over medium heat. Add the thinly sliced yellow onion and cook until golden around the edges, about 5 minutes.
Add the tomato paste and cook, stirring frequently, until slightly darkened in color, 1 to 2 minutes.
Add the minced garlic and dried oregano; cook, stirring continuously, for about 30 seconds until fragrant.
Pour in the marinara sauce, scraping up any browned bits. Stir in the drained butter beans, fine sea salt, and black pepper; bring to a gentle simmer.
Stir in the cottage cheese and grated Parmesan; taste and adjust salt if needed.
Scatter the shredded mozzarella over top. Broil until the cheese is golden and bubbling, about 1 to 3 minutes, watching carefully.
Garnish with fresh basil (optional) and serve hot.