Veggie Pizza Stromboli

1 dough (homemade calzone or bought)
1 tbsp oil
1/2 red onion, thinly sliced
1-2 bell peppers, assorted colors, thinly sliced
2 handfuls mushrooms, coarsely chopped
1 small can crushed tomatoes
2 tbsp garlic powder
1/4 tsp red pepper flakes
1/2 tsp oregano
2 large handfuls spinach
Salt and pepper to taste
1 cup Shredded cheese (cheddar, Monterey jack mix)
1/2 cup parmesan cheese
1 tbsp oil or 1 egg, whisked

Preheat oven to 375.
In a pan over medium heat, saute onion, peppers and mushrooms until slightly softened. Add in tomatoes, garlic, red pepper flakes, oregano and spinach. Salt and pepper to taste. Remove from heat.

Lay your dough on a greased baking sheet. Cut slits on two long sides, about 2 inches in from edge. Spread veggie mixture down the middle. Top with cheeses. Start crossing the strips of dough over the top and close the ends. Brush top with oil or whisked egg. Bake.