Paleo Greek 'Rice'

Stir onion and lemon juice together in a bowl; let rest until onion flavor mellows about 30 minutes. Drain onion reserving lemon juice.

Shred cauliflower in a food processor until it is the size of small rice grains.

Place cauliflower in a skillet over medium heat. Cover and cook stirring occasionally until cauliflower is steamed 8 to 10 minutes. Remove the lid and stir red bell pepper and grape tomatoes into cauliflower; cook stirring occasionally until heated through about 3 minutes. Add onion and mint to cauliflower mixture; cook and stir until heated through about 3 minutes.

Whisk olive oil 3 tablespoons reserved lemon juice salt and pepper together in a bowl. Pour lemon juice mixture over cauliflower mixture and toss to coat. Season with salt and black pepper to taste.