- **Mushroom Prep**: Wipe mushrooms with a damp cloth before slicing to avoid sogginess. A mix of cremini and shiitake adds depth, but button works fine.
- **Meatball Note**: Premade meatballs vary in flavor; if heavily seasoned, taste before adding extra salt. Frozen meatballs work too—just thaw or extend searing time.
- **Substitutions**: Swap spinach for arugula or kale. Use gluten-free orzo for dietary needs.
- **Storage**: Leftovers keep in an airtight container in the fridge for 3 days. Reheat with a splash of broth to loosen the orzo.
- **Mushroom Boost**: For extra umami, add 1 tbsp mushroom powder or a splash of soy sauce with the broth.