Steam curls up from the valve and your stomach starts talking back. You catch that little hiss signaling the pressure build inside your cooker and suddenly you know something good's happening. It feels like you got a secret ally in the kitchen, making dinner happen faster than usual.

Green beans steam crisp while pasta cooks just right, all soaking up that vibrant cashew pesto you whipped up fresh. There's this kinda warm feeling as the smell hits you, kinda like summer evenings with friends, just y'all and good food chatting on your plate.
Honestly, cooking with a pressure cooker for this pasta sorta changes the game. No fuss, no watching pots, just pure broth depth and steam cues doing the work. You get flavors that are bright but calm, perfect texture with lots of green goodness packed in.
What Makes Pressure Cooking Win Every Round
- Speedy cooking time means dinner's ready sooner than you think.
- Locking in flavors keeps that pesto fresh and powerful when it hits your taste buds.
- Less water needed so veggies stay vibrant and not soggy.
- Steam cues are your best friend for cooking pasta and green beans just right.
- Broth depth enhances every bite with a richness you wouldn't guess was so simple.
- Quick release lets you stop cooking exactly when you want without overdoing it.
- It's kinda foolproof, even if you're just learning the ropes with a pressure cooker.
The Complete Shopping Rundown
You'll wanna grab a few fresh and pantry staples for this dish. First off, 2 tablespoons of unsalted raw cashews make the pesto creamy and nutty without being heavy. Then scoop up about a half cup of fresh basil leaves - that herby punch really brightens the whole dish.
Baby spinach, about 1 cup, folds in nicely for extra green power. Just add 1 to 1.5 tablespoons of nutritional yeast flakes for some cheesy vibes if you keep it vegan. Don't forget 1 clove of garlic peeled for that bite.

Liquid's gotta come from 2 tablespoons of low-sodium vegetable broth. Nothing fancy, just helps bring everything together smooth. You'll need about 1 tablespoon of freshly squeezed lemon juice too - that fresh zing lifts the pesto right up.
For the pasta side, 4 ounces of whole wheat spaghetti goes great here. Green beans, trimmed and sliced lengthwise in halves, take about 4 ounces and add crunch and color. Then ¾ cup of cannellini beans, rinsed and drained, add creaminess and protein.
Season it all with sea salt and black pepper to taste. Finally, toss on ½ tablespoon of chopped pistachio nuts and a sprinkle of crushed red pepper flakes if you wanna bring a little heat.
How It All Comes Together Step by Step
First, bring a large pot of water salted just right to a boil. Toss in the whole wheat spaghetti and cook until you get that perfect al dente bite, usually what the package says will do it. Drain the pasta and set it aside so it doesn't get mushy.
Next, get busy on the pesto. Grab your blender or food processor and throw in cashews, basil, baby spinach, nutritional yeast, garlic, veggie broth, and that lemon juice. Blend until it's super smooth and creamy. Add in a smidge more broth if it's too thick to mix well.
While that's blending, trim your green beans and either steam or blanch them. You want them tender but still got a little snap, about 4 to 5 minutes is perfect. Drain so they don't get soggy.

Now comes the fun part. In a big bowl you got cooking spaghetti, green beans, and the pesto sauce. Toss everything gently but thoroughly so that bright green pesto coats all those noodles and beans.
Give it a taste to check for salt and pepper, adjust if you gotta. Toss in those cannellini beans so they mix in creamy but not overpowering. Throw a little crushed red pepper on if you're feeling spicy vibes.
Serve this dish warm or cool it down to room temp if you want a lighter feel. Top with chopped pistachios for crunch and a little fresh basil or nutritional yeast if you want. Dang, it's ready to chow down.
Valve Hacks You Need to Know
- If steam hisses too strong and fast, dial back your heat to keep a gentle pressure build and avoid overcooking.
- Quick release is good for stopping pasta right when it hits al dente but be careful not to burn your fingers on the valve.
- Watching the steam cues helps you learn your cooker's quirks so you get perfect texture every time without guesswork.
Your First Taste After the Wait
You take that first bite and the bright, fresh cashew pesto kinda dances on your tongue. There's a smooth nuttiness with a hit of lemon that keeps things lively. It's cooler than heavy sauces out there but still so satisfying.
The green beans add that crisp, fresh snap which is just the right counterpoint to the soft pasta. You notice how the cannellini beans sneak in a creamy texture without being mushy or cloying. It's real good.
Hints of garlic and nutritional yeast bring a subtle depth, and if you sprinkled on pepper flakes, you get a warm kinda burn that wakes up every bite. Y'all gonna love this mix of flavors and textures.
Smart Storage That Actually Works
After lunch or dinner, just pop your leftovers into an airtight container and store it in the fridge. It keeps well for a couple days and the flavors kinda settle into each other, sometimes even tasting better.
If you wanna keep it longer, toss your pasta mix in a freezer-safe container. Freeze for up to a month. When you're ready, thaw overnight in the fridge and warm gently on the stove or microwave.
For a quick reheating tip, add a splash of that vegetable broth so the pasta doesn't dry out or get tough as you heat it again. It keeps the dish moist and fresh tasting.
And don't forget, pistachio nuts on top are best added fresh right before serving to keep their crunch and bright flavor.
Your Most Asked Questions Answered
- Can I swap out cashews for other nuts? Yep, pine nuts or almonds work fine if you gotta avoid cashews. Just soak them a bit for smooth blending. For more nutty pesto ideas, check out our Stuffed Pepper Soup recipe that uses nuts well.
- How do I make this gluten-free? Use gluten-free pasta or spiralized zucchini noodles for a low-carb option. Both work well with the pesto. If you're looking into gluten-free meals, our Slow Cooker Garlic Butter Beef Bites & Potatoes is a great gluten-free comfort food.
- Can I skip the nutritional yeast? Totally. You can sub grated Parmesan if you're cool with dairy, or just leave it out for a lighter, less cheesy flavor.
- What if I don't have a pressure cooker? No worries, cook spaghetti and green beans separately on the stove. The pesto still shines and it's just a bit longer to prep.
- How spicy is this dish? It's mild by default but adding crushed red pepper flakes gives it a nice warming kick you can control.
- Can I prep this ahead of time? Yep, pesto can be made the day before. Keep it sealed tight in the fridge so the color stays vibrant.

Cashew Pesto with Green Beans Pasta
Equipment
- 1 Food processor
- 1 Colander
- 2 Mixing bowls
- 1 Measuring cups and spoons
Ingredients
Pesto Ingredients
- 2 tablespoons unsalted raw cashews
- 0.5 cup fresh basil leaves
- 1 cup baby spinach
- 1 to 1.5 tablespoons nutritional yeast flakes
- 1 clove garlic peeled
- 2 tablespoons low-sodium vegetable broth
- 1 tablespoon freshly squeezed lemon juice
Pasta and Vegetables
- 4 ounces whole wheat spaghetti
- 4 ounces green beans trimmed and halved lengthwise
- 0.75 cup cannellini beans rinsed and drained
Seasonings and Garnish
- to taste sea salt
- to taste freshly cracked black pepper
- 0.5 tablespoon chopped pistachio nuts
- to taste crushed red pepper flakes optional
Instructions
Instructions
- Bring a large pot of salted water to a boil. Cook whole wheat spaghetti according to package instructions. For the last 2 minutes of cooking, add green beans to the pot. Drain and reserve 1 cup of pasta water.
- In a food processor, combine soaked cashews, basil, spinach, nutritional yeast, garlic, broth, and lemon juice. Blend until smooth. Add broth if necessary to thin it out.
- Return drained spaghetti and green beans to the pot. Stir in the pesto and mix gently.
- Add cannellini beans and toss until everything is well combined. Gradually add reserved pasta water to loosen if needed.
- Season with salt and pepper. Top with chopped pistachios and crushed red pepper flakes if desired. Serve warm.



