This Instant Pot Baked Ziti recipe is vegetarian and a fantastic meatless pressure cooker pasta! Loaded with vegetables, spices, ricotta cheese and a delicious creamy sauce.
Set the Instant Pot to sauté mode and heat the olive oil. Add the onions and garlic and sauté for 3 or 4 minutes until the veggies start to become translucent. Add the tomato paste, balsamic vinegar, salt, pepper, red chili flakes if using, diced tomatoes Vegetable stock, pasta, and ricotta cheese. Stir well.
Set Instant Pot to Pressure Cook for 3 minutes on High Pressure or Manual Mode.
Quick release the pressure, taking care not to have your hands or face near the steam vent.
Once float valve has lowered, carefully open the lid. Stir in the mozzarella cheese, and parsley. Top with extra mozzarella or parmesan and parsley, and enjoy hot!