Select saute or browning setting on a 6-qt. electric pressure cooker. Adjust for medium heat; add oil. When oil is hot, add sausage, onion, celery and carrot. Cook until sausage is no longer pink and vegetables are tender, 6-8 minutes, breaking up sausage into crumbles; drain. Press cancel. Return all to pressure cooker.
Add broth, tomatoes, lentils, spinach, wine, garlic, salt and pepper. Lock lid; close pressure-release valve. Adjust to pressure cook on high for 15 minutes. Let pressure release naturally for 10 minutes; quick-release any remaining pressure. If desired, serve with cheese.
Freeze option: Freeze cooled soup in freezer containers. To use, partially thaw in refrigerator overnight. Heat through in a saucepan, stirring occasionally and adding a little water if necessary.
