Sauté the Meat: Turn on the sauté function of the Instant Pot and add olive oil (if using). Once the pot shows “HOT,” add ground beef (or your choice of meat), salt, and pepper. Break the meat into smaller pieces while sautéing. Add the diced onion and minced garlic and cook until the meat is browned and the onion is soft. Drain excess grease if necessary.
Deglaze the Pot: Turn off the sauté function. Pour in a small amount of chicken broth and use a spatula to scrape up any browned bits from the bottom of the pot
Add Remaining Ingredients: Pour in the remaining chicken broth, marinara sauce, diced tomatoes, basil, parsley, onion powder, oregano, and red pepper flakes (optional). Stir to combine. Layer the uncooked pasta on top, pressing it down slightly to ensure it’s in an even layer. Do not stir.
Pressure Cook: Close the lid and set the vent to Sealing. Select Manual/Pressure Cook on high pressure and cook for 4 minutes. After the cooking cycle ends, perform a controlled quick release of the pressure.
Finish the lasagna: Open the lid carefully. Stir the lasagna and add ricotta cheese, mixing it in. Top with mozzarella cheese and place the lid askew on the pot to melt the cheese for a few minutes.
Serve: Garnish with fresh parsley and grated Parmesan cheese if desired. Serve immediately and enjoy!