Instant Pot Garlic Butter Pasta with Spinach and Parmesan

A quick, hands-off Instant Pot pasta that delivers creamy garlic-butter flavor with tender spinach and sharp Parmesan folded in at the end. Perfect for weeknight dinners when you want a comforting one-pot meal with greens included and minimal cleanup.

0.0(0 reviews)
Prep: 8m · Cook: 12m · Total20 mins
DifficultyEasy
Serves4
Instant Pot Garlic Butter Pasta with Spinach and Parmesan
Jake

Jake's note

"This recipe shines when you want a fast, satisfying dinner with a serving of greens built right in. Home cooks will love how hands-off it is—the Instant Pot does the work and you finish with bright lemon and melting Parmesan."

Instant Pot Garlic Butter Pasta with Spinach and Parmesan

This Instant Pot Garlic Butter Pasta is the kind of weeknight recipe that feels indulgent without a lot of fuss — garlic and butter build a genuinely cozy backbone, and the Parmesan melds with the pasta water into a silky, cream-like sauce without any cream. The pressure cooker does the heavy lifting: starch released during pressure cooking thickens the liquid so you end up with a glossy coating rather than a soupy bowl. The quick addition of baby spinach at the end keeps the leaves tender and bright, so you get a hit of green without extra chopping or fuss.

What makes this version work is the little technique choices: a layer of butter and oil under the dry pasta prevents sticking, low-sodium broth controls the final salt, and a splash of lemon at the finish lifts the richness. It’s fast — and forgiving — so it’s ideal for people who want comforting, veggie-forward dinners with minimal cleanup, anyone cooking for a busy household, or cooks new to the Instant Pot who still want everything to taste composed and restaurant-worthy.

Plan your timing

6:37 pm6:40 pmSauté garlic in butter and oil
6:40 pm6:43 pmAdd pasta, broth and salt
6:43 pm6:46 pmPressure cook
6:46 pm6:49 pmQuick release and add spinach
6:49 pm6:52 pmFinish with Parmesan, lemon and seasoning
6:52 pm6:55 pmServe and garnish
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Ingredients

Yield
4

Instructions

Sauté garlic in butter and oil

Set the Instant Pot to Sauté (or Sear) on medium-high and add the butter and olive oil. When the butter melts and the fat is shimmering, add the minced garlic and cook, stirring constantly, until fragrant and just beginning to color, about 30–60 seconds; don’t let it burn.

For this step

  • 4 tbspUnsalted butter
  • 1 tbspOlive oil
  • 4 clove(s)Garlic, minced
Sauté garlic in butter and oil

Add pasta, broth and salt

Turn the pot off, spread the dry pasta in an even layer over the garlic-butter, then pour the broth over the pasta so it's mostly submerged. Sprinkle in the kosher salt and gently press the pasta down so it's largely covered by liquid but avoid stirring vigorously, which can cause foaming.

For this step

  • 12 ozDry pasta (spaghetti, linguine, or penne)
  • 4 cupLow-sodium chicken or vegetable broth
  • 1 tspKosher salt
Add pasta, broth and salt

Pressure cook

Secure the lid and set the valve to sealing. Cook on Manual/High pressure for 4 minutes for most dried pasta shapes (reduce to 3 minutes for thin linguine/spaghetti). Allow the Instant Pot to build pressure and cook—this typically adds 8–10 minutes to the timer before the 4-minute cook begins.
Pressure cook

Quick release and add spinach

Quick-release the pressure carefully once the cook cycle finishes. Open the lid, give the pasta a gentle stir to loosen any pieces stuck to the bottom, then add the packed baby spinach and cover for 1–2 minutes to wilt from the retained heat, stirring once or twice so it wilts evenly.

For this step

  • 6 cupBaby spinach, packed
Quick release and add spinach

Finish with Parmesan, lemon and seasoning

Stir in the grated Parmesan, freshly ground black pepper and lemon juice until the cheese melts into a silky sauce and the spinach is fully incorporated. Taste and adjust seasoning with more salt or lemon if desired; if the sauce seems thick, stir in up to 2 tablespoons of warm broth to loosen.

For this step

  • 0.75 cupGrated Parmesan cheese
  • 0.5 tspFreshly ground black pepper
  • 1 tbspFresh lemon juice
Finish with Parmesan, lemon and seasoning

Serve and garnish

Divide the pasta between bowls and finish with an extra sprinkle of Parmesan and a crack of black pepper or a drizzle of olive oil if you like. Serve immediately for the creamiest texture—leftovers thicken but reheat well with a splash of water or broth.
Serve and garnish

Tips from the kitchen

Layer, Don’t Stir

Spread dry pasta in an even layer and pour broth over it rather than stirring to reduce foaming and prevent the burn notice on the Instant Pot.

Use Low-Sodium Broth

Low-sodium broth lets you control seasoning; grated Parmesan adds saltiness at the end so you can adjust to taste without over-salting early.

Short Quick Release

Quick-release pressure right after the cook time stops carryover cooking and prevents the pasta from going mushy; it also makes the residual heat perfect for wilting spinach.

Grate Cheese Finely

Use finely grated (not pre-shredded) Parmesan so it melts smoothly into the hot pasta rather than clumping or staying grainy.

Loosen With Warm Broth

If the sauce tightens as it cools, stir in 1–2 tablespoons of warm broth — not cold water — to re-emulsify the sauce without diluting flavor.

Variations & substitutions

Add a Protein

Stir in pre-cooked chicken, slices of Italian sausage, or quickly sautéed shrimp after pressure cooking to make this a heartier one-pot meal.

Dairy-Free Twist

Replace butter with olive oil and swap Parmesan for 2–3 tablespoons of nutritional yeast and a splash more lemon to mimic the savory, cheesy flavor.

Swap the Greens

Use thinly sliced kale or chard instead of spinach, but add them earlier and give them an extra minute under the lid so they soften fully.

Bright Tomato Addition

Stir in a cup of halved cherry tomatoes (either fresh or briefly sautéed) at the end for acidity and a pop of color that balances the richness.

Storage & make-ahead

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. The sauce will thicken as it cools; reheat gently in a skillet over medium-low heat with a splash of broth or water to restore creaminess, or microwave in short bursts stirring between them. You can freeze portions for up to 2 months, but expect the texture of the spinach to soften further once thawed.

What to serve with it

Serve this pasta with a crisp green salad dressed in lemon vinaigrette to echo the bright finish, and a slice of crusty bread to sop up any remaining sauce. For drinks, a chilled Pinot Grigio or an unoaked Chardonnay complements the buttery-parmesan flavors, while a light-bodied red like a young Chianti works if you prefer red wine.

Frequently asked questions

Can I use whole wheat or gluten-free pasta?

Yes, but cook times and liquid needs vary; whole wheat pasta often takes 1 minute longer, while many gluten-free pastas can overcook quickly so reduce pressure time and watch the texture closely.

Why shouldn’t I stir the pasta before pressure cooking?

Stirring disperses starch and can create excess foamy bubbles that trigger the Instant Pot’s burn protection; layering the pasta and pouring broth on top helps prevent that.

My pasta stuck to the bottom or showed a burn message — what went wrong?

Common causes are insufficient fat under the pasta, not spreading the pasta evenly, or using very starchy pasta with too little liquid; deglaze the pot after sautéing the garlic next time, add the oil/butter, and be sure the noodles are mostly submerged.

Can I add cream or more cheese for extra richness?

Yes — stir in up to 1/4 cup heavy cream or cream cheese off heat for an ultra-luxurious finish, and add additional grated Parmesan gradually so the sauce stays silky.

How do I keep the spinach bright and not soggy?

Add the packed baby spinach after the pressure cycle and let it wilt under the closed lid for 1–2 minutes; stirring only once or twice preserves texture and color.

Jake

About the author

Jake

Hello, I'm Jake. I started this recipe site with the idea that I hated recipe websites that overwhelm you with long stories and ads just to see plain content that's not helpful. My goal is to provide you with quality recipes, simple ideas and a fun cooking experience. There's lots of fun things to cook, and I think as you browse the site you'll find that TopShelf.Recipes is the place for quality recipes on the web.

See all recipes by Jake

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Ingredients

4 servings
Step 1: Sauté garlic in butter and oil
  • Unsalted butter4 tbsp
  • Olive oil1 tbsp
  • Garlic, minced4 clove(s)
Step 2: Add pasta, broth and salt
  • Dry pasta (spaghetti, linguine, or penne)12 oz
  • Low-sodium chicken or vegetable broth4 cup
  • Kosher salt1 tsp
Step 4: Quick release and add spinach
  • Baby spinach, packed6 cup
Step 5: Finish with Parmesan, lemon and seasoning
  • Grated Parmesan cheese0.75 cup
  • Freshly ground black pepper0.5 tsp
  • Fresh lemon juice1 tbsp

Nutrition Facts

Per serving: about 4¼ cups

Calories590
Total Fat25.4g
Saturated Fat12.5g
Trans Fat0.2g
Polyunsaturated Fat2.2g
Monounsaturated Fat3.5g
Total Carbohydrates70.7g
Dietary Fiber3.7g
Total Sugars4.5g
Protein19.5g

Nutrition values are estimated from USDA ingredient data and may vary based on preparation, brands, and portion sizes. Values are provided for informational purposes only.

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Instant Pot Garlic Butter Pasta with Spinach and Parmesan

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