Instant Pot Ham and Cheese Pasta is a creamy, one-pot dinner made with tender pasta, savory ham, and a rich cheddar sauce. Use leftover ham or a diced ham steak.
In the inner pot, combine the 4 cups low-sodium chicken stock, 1 teaspoon garlic powder, 1 teaspoon onion powder, ½ teaspoon paprika, ½ teaspoon kosher salt, and ½ teaspoon black pepper. Add 16 ounces rotini noodles, and gently push down into an even layer. It is okay if not fully submerged in the liquid.
Place the lid on the pot and lock the vent knob to sealed. Set to cook on High Pressure using the pressure cook or manual button for 4 minutes.
After the cook time has elapsed, let the pressure release for exactly 5 minutes. Then do a quick release of pressure by SLOWLY knocking the vent knob from the sealed to venting position with the handle of a long utensil. Stand back to prevent being burned by any residual steam.
Carefully open the pot, add the shredded cheese, cubed ham, sour cream, and peas, and stir to combine. Add milk, 1 tablespoon at a time, until the sauce is smooth and creamy.
Return the lid to the instant pot and let the pasta sit for 3-5 minutes, just to allow the cheese to fully melt and the peas to warm through. Taste and adjust seasonings if needed, then serve immediately.
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Notes
Pasta: Use rotini or corkscrew noodles to keep the timing accurate. For elbow noodles, reduce the cook time to 3 minutes. Ham: Ham is typically sold already smoked and cubed. If your cubed ham or ham steak indicates to heat to a certain temperature before serving, add the cubed ham to your inner pot on top of the pasta BEFORE pressure cooking. Cheese: It is best to grate the cheese yourself, for smooth melting. And either white or yellow sharp cheddar is best suited to this recipe. Sour Cream: Use full-fat or reduced-fat, not fat-free as the flavor and consistency are not the same. Storage: Store leftover, cooled pasta in an airtight container for up to 4 days in the refrigerator. I don't recommend freezing this pasta, as the cheesy sauce may separate once thawed.