Spinach pizza with roasted garlic, caramelized sweet onion, and fontina

Contributed by Preston Maring, MD

Spinach pizza with roasted garlic, caramelized sweet onion, and fontina

You can use a whole bunch of spinach on this pizza which looks really excessive because usually pizza toppings aren't loaded 3 inches high.  I bet that even those who don't normally like to eat green things will love this.  And the roasted garlic and caramelized onions add good smells to your house. 

I made my usual homemade pizza dough.  You could also use a thin pre-made crust — preferably one with some whole grain in it.

Servings: 3


  • Rolled out dough for a 12 inch pizza or a pre-made crust
  • 1 head garlic
  • 1/2 cup olive oil (you will only use about 2 tablespoons of it so you will have roasted garlic oil leftover for another use --- takes advantage of the fact you went to the trouble to roast the garlic)
  • 1 sweet onion, thinly sliced
  • 1 bunch fresh spinach, washed and dried
  • 2 ounces fontina cheese, coarsely grate
  • Salt and freshly ground pepper


  1. Wrap the whole head of garlic loosely in aluminum foil.  Roast it in a 400-degree oven for one hour. 
  2. When cool enough to handle, cut the tops off of the cloves.  Here you can try to separate the cloves a squeeze out the softened garlic into the bowl of olive oil or just squeeze the whole head which is much easier.  It's best to do this step ahead of time so the garlic and oil can sit for a while. 
  3. Preheat your oven and pizza stone if you are using one to as hot as it can go without broiling.  
  4. Heat a tablespoon of the olive oil in a saute pan gently, add the onion, and cover.  Stir the onion every now and then until it caramelizes.  This takes maybe 15 minutes. 
  5. Roll out the dough to a 12-inch circle and place it on a lightly floured peel or baking sheet.  If using a pre-made crust, follow the instructions.  Brush the crust lightly with about a tablespoon of the garlic oil, but try to scoop out a lot of the roasted garlic and spread it around. 
  6. Scatter the caramelized onions.  Add a thick layer of spinach leaves.  Top with half the cheese.  Add another layer of spinach leaves and top with the rest of the cheese.  
  7. Sprinkle a little salt and a liberal amount of freshly ground black pepper.
  8. I learned to bake pizzas in 2 steps from my son.  That way you just need to finish it in the oven when everything else is totally ready — like the table is set, the salad has been made, and your partner is close by and ready to eat.  Try baking this spinach pizza for about 6 minutes first, getting everything else ready and the kitchen cleaned up, and then finishing it for about 3 minutes.  
  9. Cut it into 6pieces and serve.

Nutrition information (per serving)

  • Serving size: 2 slices
  • Calories: 392
  • Total fat: 17 g
  • Saturated fat: 5 g
  • Trans fat: 0 g
  • Cholesterol: 11 mg
  • Sodium: 567 mg
  • Total carbohydrate: 47 mg
  • Dietary fiber: 5 g
  • Protein: 14 g