Seasonal Breakfast Frittata

Ingredients

• 3/4 pound bulk mild italian pork sausage or chorizo
• 6 large eggs
• 1 cup heavy cream
• salt, freshly ground black pepper, and red pepper flakes
• 2 large handfuls baby spinach, swiss chard, or arugula, washed and spun dry
• 8 ounce feta cheese, crumbled
• 1 large ripe tomato, coarsely chopped (optional)