Sarah Rose's Dad's Made-Up Kind of a Salad Sort of Thing

Ingredients (11)

• + ½ pound thin spaghetti, broken into 1 1/2-inch lengths add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• ✓ 2 cloves garlic, minced, divided
• + 1 tablespoon dried basil, divided add to pantry
• ✓ ¼ cup olive oil, divided
• + 2 pints grape tomatoes, diced add to pantry
• ✓ ½ red onion, diced
• + 1 (6 ounce) can small pitted black olives, halved lengthwise add to pantry
• + 1 (12 ounce) package sliced fresh mushrooms add to pantry
• + 6 romaine lettuce leaves, torn into bite size pieces add to pantry