Soak 1/2 cup bread cubes in 1/2 cup milk, 5 minutes. Whisk with 4 eggs, and salt and pepper. Add 1/4 cup each chopped parsley and grated parmesan, 6 chopped stemmed squash blossoms, 1 grated garlic clove and 1 shredded yellow squash. Heat 1 tablespoon olive oil in a small ovenproof skillet; add the egg mixture and cook 5 minutes, then bake at 375 degrees F until set, 20 minutes. Cut into pieces.