Remove the lid of the Instant Pot and select the Saute setting, then add 2 tablespoons of extra-virgin olive oil.
When the oil is hot, add the pound and a half of ground beef (ground turkey or ground chicken works well, too) and brown until no pink remains. (If needed, carefully drain excess grease before adding vegetables.)
Add the chopped red onions, red bell pepper, and minced garlic, and continue to sauté until the onions begin to soften. Tip: Use a wooden spoon to scrape up any browned bits from the bottom of the pot.
Scatter in the seasonings and mix thoroughly. Pour in the beef or vegetable stock, Pace® Chunky Salsa, tomato sauce, and drained black beans and corn, then stir the ingredients a few times.
Pour the baby spinach and the lasagna strips, then gently fold the ingredients together.
Secure the lid on the Instant Pot. Set the valve to Sealing and cook on Steam for 10 minutes. Perform a quick release when the timer ends.
Taste the soup and, if necessary, adjust the seasoning to suit your taste.
Spoon into bowls and top with your choice of shredded cheese, cilantro (optional), and a tablespoon of sour cream.
Serve.