Dissolve yeast and sugar in warm water in a small bowl.

Let the mixture stand until creamy, approximately 10 minutes.

Combine flour, Italian seasoning, and half the salt in a food processor.

Pulse until the ingredients are mixed.

Add the yeast mixture, flat beer, and olive oil to the food processor.

Pulse until a ball of dough forms.

Scrape the dough onto a lightly floured surface and knead until smooth.

Heat olive oil in a saucepan over medium heat to make the sauce.

Saute onions until they become tender.

Stir in garlic and cook for 1 minute.

Crush tomatoes into the saucepan.

Add tomato paste, basil, parsley, oregano, and remaining salt.

Simmer the sauce for 10 minutes.