To get the spaghetti inside the Instapot, break it in half. Add the minced garlic, avocado oil, and water. Place the lid on and cook on “pressure cook high” for 4 minutes. Quick-release the steam until the valve button drops.
Make the sauce: in a small bowl combine the mayo, Thai sweet chili sauce, lime juice, and Sriracha until smooth.
Once the valve button drops on the Instapot, remove the lid, stir in the sauce (do not drain the water), and let it simmer for 3 minutes.
Add the shrimp, mix to combine, press “saute” and cook for 3 more minutes until the shrimp turn pink and are cooked through. Serve with freshly chopped green onions or parsley on top.