eating eggs in moderation is fine for IgAN patients, but you'll want to limit consumption of the yolks since they're high in phosphorus. For the turkey sausage, you'll need to check the sodium content since processed meats tend to be high in sodium. If possible, opt for low-sodium varieties. Overall, this breakfast can work if you:

Use mostly egg whites
Choose low-sodium turkey sausage
Watch portion sizes
Balance with other kidney-friendly foods throughout the day
Consider adding kidney-friendly fruits like berries or pineapple to round out the meal. Always check with your doctor about specific dietary restrictions based on your condition's stage.