My Aunt Alice is growing green zucchini and round zucchini (which is a sort of 'zuccotto' and can grow quite big). I like the round zucchini!
Here how the round zucchini look like sliced.
Lemon Sautéd Green and Round Zucchini
Slice the zucchini and cut the bigger slices into quarters. Sauté two peeled garlic cloves with a little olive oil, then add the zucchini, lower the heat and simmer for 30 minutes, stirring often. The round zucchini are softer and will mush a little, but they have a great taste. The round zucchini will 'almost' mush, but keep their shape and colour better (the round one turn yellow!). Add salt halfway through cooking. At the end add a tsp of fresh chopped Italian parsley and a few lemon slices (or the juice of half a lemon). It can also be used to to cous cous, pasta and rice.