Ingredients:
- 2 pounds boneless sirloin tip steak, cubed
- 2 Tbsp olive oil
- 1 small yellow onion, diced (1 cup)
- 2 oz fresh baby spinach
- 4 cloves garlic, minced
- 28 oz can crushed tomatoes
- 1 tablespoon Italian seasoning
- 1 teaspoon basil
- 1 teaspoon salt
- ½ teaspoon pepper
- ½ teaspoon crushed red pepper flakes-more or less/omit to taste