Creamy Chicken and Broccoli Sheet Pan Lasagna
| 8 oz lasagna noodles |
| olive oil |
| 3 TBSP butter |
| 3 TBSP flour |
| 3 cups milk |
| 1 tsp salt |
| 1/4 tsp black pepper |
| 1/8 tsp nutmeg |
| 1/16 tsp cayenne pepper |
| 1 1/2 cloves garlic, minced or finely chopped |
| 8 oz broccoli, finely chopped |
| 2 1/2 oz spinach, roughly chopped |
| 8 oz (2 1/2 cups) shredded rotisserie chicken |
| 1 cup grated parmesan cheese, divided |