Preheat the oven to 400 °F (200 °C).
Whisk the eggs with milk, dried herbs, and cream together, season with salt and pepper, set aside.
Cut the zucchini in half lengthwise and then into ¼-inch (5mm) slices.
Rinse the spinach thoroughly and pat dry (when using thick and big leaves, cut off the stalks), chop the garlic finely.
Heat the oil in a frying pan, add the zucchini, cook over medium-high heat for 3 minutes, until tender and slightly browned.
Add the spinach and garlic, cook for 30 seconds or until wilted (thicker and larger spinach leaves need to be cooked a little longer).
If you are using an ovenproof frying pan - pour the egg mixture over the vegetables, stir, cook for about 2 minutes (without stirring) over medium-low heat. Take the pan off the heat, add the salmon pieces and goat’s cheese (divided with a teaspoon into small portions or crumbled) on top. Put the frittata in the oven and bake for about 10-15 minutes or until the eggs are set.
If your pan is not suitable to put in the oven - spread the zucchini and garlic at the bottom of a round baking dish, pour the egg mixture over the vegetables, and place the salmon pieces and goat cheese (divided with a teaspoon into small portions) on top. Bake for about 20-25 minutes or until the eggs are set.
The baking time will depend on the size of the baking pan, also every oven bakes a little differently. To check if the frittata is ready, just shake slightly with the pan – it should not be jiggly in the middle.
Enjoy!