Blue Cheese Spinach Frittata

I love this even the next day. It is quick to make and is a regular in our house.

In a skillet coated with cooking spray , cook onion and garlic over medium heat for 3 minutes or until tender.

Remove from the skillet.

Add spinach to skillet in batches , cooking for 1 minute or until wilted.

Remove from the heat.

In a large bowl , beat the eggs / egg substitute until frothy.

Stir in the onion mixture , cooked spinach , mozzarella , blue cheese , tomatoes and nuts.

Place in a 10-in.

Ovenproof skillet coated with cooking spray.

Bake , uncovered , at 400 for 30-35 minutes or until a knife inserted near the center comes out clean.

onion, garlic cloves, fresh spinach, eggs, part-skim mozzarella cheese, blue cheese, plum tomatoes, walnuts