1. Preheat the Oven: Set your oven to 360°F and grease a muffin tin (or use a silicone muffin tray with cooking spray) to ensure the muffins don’t stick.

2. Mix the Dry Ingredients: In a large bowl, whisk together the flour, baking powder, salt, and dried Italian herbs until well combined.

3. Mix the Wet Ingredients: In a separate bowl or jug, whisk together the tomato purée, olive oil, and egg until smooth and well incorporated.

4. Combine the Mixtures: Pour the wet ingredients into the dry ingredients and stir gently until just combined. Be careful not to overmix, as this can result in tough, dense muffins.

5. Fold in the Toppings: Gently fold in the grated cheese, diced ham (or your preferred pizza toppings), and baby spinach, if using.

6. Fill the Muffin Tray: Scoop the batter evenly into the prepared muffin cup, filling them about three-quarters full.

7. Bake to Perfection: Place the muffin tray in the preheated oven and bake for 15-20 minutes, or until the tops are golden brown and a toothpick inserted into the center comes out clean.

8. Serve and Enjoy: Allow the Pizza Muffins to cool slightly before serving them warm or at room temperature. They make a great snack, lunchbox item, or casual meal.