1. Heat the olive oil in a large skillet over medium heat. Add the chopped onion and cook until translucent, about 5 minutes. This step always brings me back to those early days in the kitchen, learning the importance of patience and letting flavors develop.
2. Add the minced garlic and red pepper flakes, stirring constantly until fragrant, about 1 minute. Be careful not to burn the garlic—my abuela always said this is where the dish gets its soul.
3. Stir in the white beans, diced tomatoes with juice, and dried oregano. Season with salt and pepper. Let the mixture simmer for 10 minutes, allowing the flavors to meld together beautifully.
4. Add the chopped spinach, stirring until wilted, about 2-3 minutes. Watching the greens wilt into the dish is a reminder of how transformative cooking can be.
5. Sprinkle with Parmesan cheese and torn basil leaves before serving. The final touch of fresh herbs and cheese adds a layer of freshness and depth.

The step-by-step process here ensures that even the most inexperienced cook can create a dish that’s both impressive and heartfelt.