In a large skillet, heat the extra-virgin olive oil over medium heat. Add the finely minced onion and sauté for about 5 minutes until translucent. Stir in the minced garlic and cook for an additional minute until fragrant.
Add the tomato paste, maple syrup, and optional dried thyme to the skillet. Mix well and cook for another 2 minutes, allowing the flavors to meld.
Pour in the pureed tomatoes or tomato passata, stirring to combine with the onion mixture. Let it simmer for about 5 minutes, allowing it to thicken slightly.
Gently fold in the cooked cannellini beans. If you prefer a thicker consistency, you can mash some of the beans with a fork.
Season the mixture with sea salt, freshly cracked black pepper, smoked paprika, and the optional vegan Worcestershire sauce. Allow the beans to simmer for another 10 minutes, stirring occasionally to prevent sticking.
Once heated through and the flavors have developed, remove the skillet from heat. Serve your British Baked Beans warm, either on toast or alongside your favorite breakfast items.