Heat olive oil in your big pressure cooker on medium-high heat. Don’t rush, you wanna get that good hot base.
Toss in the beef stew meat and brown it on all sides. This part’s important, you seal in those juices and get flavor locked down.
Pull the beef out and set it aside on a plate for now to rest.
Add chopped onion and minced garlic to the pot. Stir and sauté till you see the onion turn translucent and that garlic is smelling right.
Throw in carrots, celery, and diced bell pepper. Let those cook for about 5 minutes stirring now and then to get some softness going on.
Now, back to beef! Put it right back into the pot with those veggies.
Pour in beef broth and diced tomatoes. Sprinkle in thyme, rosemary, salt and pepper. Stir it all up so every piece is covered.
Seal the lid and wait for that pressure build. Once it hits high pressure, cook it for about 30 minutes. When time’s up, do a slow release to keep stuff tender.
Then open lid and stir in green beans and corn, cook 10 more minutes without pressure until veggies are tender.
Adjust seasoning and you’re ready to serve! Enjoy that valve hiss fade as you get your bowl ready.