01 -
In a small bowl, combine active dry yeast, warm water, and granulated sugar. Stir well and allow to rest for 5 to 10 minutes until the mixture becomes foamy.
02 -
In a large bowl, mix all-purpose flour and salt. Pour in the yeast mixture and olive oil. Blend and knead the dough for 8 to 10 minutes until smooth and elastic.
03 -
Cover the dough and set aside in a warm place for 1 hour or until doubled in size.
04 -
Heat olive oil in a skillet over medium-low heat. Add sliced onions and cook, stirring occasionally, for 15 to 20 minutes until golden and caramelized.
05 -
Add minced garlic, fresh spinach leaves, dried oregano, and crushed red pepper flakes to the skillet. Sauté for 2 to 3 minutes, until spinach is wilted. Season with salt and black pepper. Remove from heat and allow to cool.
06 -
Preheat oven to 375°F (190°C) and grease a large baking dish.
07 -
Roll out the dough on a lightly floured surface into a large rectangle. Evenly spread marinara sauce over the dough. Spoon the spinach-onion mixture on top.
08 -
Tightly roll up the dough from the long edge to form a log. Slice the log into 10 to 12 equal pieces and arrange them cut side up in the prepared baking dish.
09 -
Sprinkle the tops with nutritional yeast if desired. Bake for 25 to 30 minutes or until the rolls are puffed and golden brown.
10 -
Allow the rolls to cool slightly before serving warm.