If you'd like to replace a proposed meal, you can choose from alternatives. Go to the Meals section of the app and click on the meal you want to change. Then tap Change and choose from the alternatives.
You can modify individual ingredients of meals on your own if you're following the Nutrition management plan. This option isn't available for Meal plan.
To modify a meal, go to the Meals section of the app. Next, click on the meal you'd like to modify and click the blue button with rotating arrows next to the ingredient that you'd like to change. Choose an alternative ingredient and tap Confirm.
If you want to remove certain ingredients from your meal plan altogether, go to the Meals section of the app. Click the Settings icon at the top-right corner of the app. Under your meal type, choose Change parameters. Fill in the quiz and your meal plan will get adjusted.