Mix the greens, tomatoes, cucumber, and cabbage together in a large zip-top plastic bag and add the oil and vinegar. Shake to coat the ingredients evenly. Arrange the salad on two dinner plates and your favorite seasonings to taste.
Tip: Make this salad a meal by layering on ingredients from each of the following categories: protein, grains, fruits and vegetables, nuts, herbs and seasonings, and accents (such as croutons, chips, or crispy noodles; a drizzle of flavored vinegar; or a squeeze of fresh lemon or lime). Here are three ideas to try at home (each begins with John’s Base Salad).