Greek Cauliflower Pasta Salad

head of cauliflower ((about 2 lbs.), chopped into bite-sized florets)

extra virgin olive oil

fresh lemon juice

garlic (, minced)

fresh spinach (, tightly packed)

cherry tomatoes (, sliced in half)

large basil leaves (, cut into thin ribbons)

springs of fresh oregano (, leaves only)

crumbled feta cheese ((preferably goat's milk))

pitted olives (, sliced (optional))

salt and pepper (, to taste)