Tomatoes contain all four major carotenoids: alpha- and beta-carotene, lutein, and lycopene. These carotenoids may have individual benefits, but also have synergy as a group (that is, they interact to provide health benefits). In particular, tomatoes contain awesome amounts of lycopene, thought to have the highest antioxidant activity of all the carotenoids.
Tomatoes are a great source of vitamin C too.

Green Capsicums are an excellent source vitamin C, they are also a good source of vitamin E.

Carotenoids, Vitamin C and Vitamin E are antioxidants.

Antioxidants are substances that can prevent or slow damage to cells caused by free radicals, unstable molecules that the body produces as a reaction to environmental and other pressures.

Therefore, this red and green combination of tomato and green capsicum is an awesome combination.

Sources of Information: medicalnewstoday.com, betterhealth.vic.gov.au & webmd.com

Food Recipes in the Combination of Tomato and Capsicum: