In a large bowl, combine warm water, yeast, and sugar. Let sit for 5 minutes until foamy.
Mix olive oil, Italian seasoning, garlic, and salt in a separate bowl.
Add half of the oil mixture to the yeast mixture.
Stir in flour until a dough forms.
Transfer dough to a greased bowl, cover, and let rise for 1 hour.
While rising, prepare the sauce by mixing all sauce ingredients until smooth.
Preheat oven to 450°F.
Pour remaining oil mixture into a cast-iron skillet and coat evenly.
Press dough into the skillet and create dimples with your fingers.
Spread sauce, layer dill pickle slices, and top with mozzarella cheese.
Bake for 22–25 minutes until golden and bubbly.
Garnish with fresh dill and serve warm.