Lemon Garlic Tilapia Green Beans

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This dish features fresh tilapia fillets baked with bright lemon slices, garlic, and tender green beans wrapped in foil. The quick marinade blends lemon juice, olive oil, oregano, and seasonings for a light, flavorful meal. Baking sealed packets traps steam, keeping the fish moist and allowing the green beans to soften gently. Ready in 30 minutes, it’s an easy, wholesome option for a nutritious, low-calorie dinner that’s gluten- and dairy-free.

Updated on Sat, 14 Feb 2026 15:12:27 GMT
A foil packet of tender tilapia fillets and crisp green beans, infused with zesty lemon and garlic for a light, healthy dinner. Save to Pins
A foil packet of tender tilapia fillets and crisp green beans, infused with zesty lemon and garlic for a light, healthy dinner. | cocoastone.com

This 300-calorie lemon garlic tilapia recipe is a masterclass in healthy, flavor-forward cooking. By steaming the fish and vegetables together in tightly sealed foil packets, you lock in every drop of moisture and infuse the tilapia with a bright, zesty aroma that makes every bite incredibly satisfying. It is an ideal dinner for anyone looking for a low-calorie, high-protein meal that feels like a treat.

A foil packet of tender tilapia fillets and crisp green beans, infused with zesty lemon and garlic for a light, healthy dinner. Save to Pins
A foil packet of tender tilapia fillets and crisp green beans, infused with zesty lemon and garlic for a light, healthy dinner. | cocoastone.com

The combination of fresh garlic, dried oregano, and olive oil creates a simple yet vibrant marinade that highlights the mild flavor of the tilapia without overpowering it. This dish is perfect for busy weeknights when you want a nutritious meal on the table in just 30 minutes.

Ingredients

  • Fish & Vegetables: 4 (4 oz / 115 g each) tilapia fillets, fresh or thawed; 12 oz (340 g) fresh green beans, trimmed; 1 small red onion, thinly sliced; 1 lemon, thinly sliced
  • Marinade & Seasonings: 3 tablespoons fresh lemon juice (from about 1 lemon); 2 tablespoons olive oil; 2 large garlic cloves, minced; 1 teaspoon dried oregano (or Italian seasoning); ½ teaspoon salt; ¼ teaspoon black pepper
  • Garnish (optional): 2 tablespoons chopped fresh parsley
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Instructions

Step 1
Preheat oven to 400°F (200°C).
Step 2
In a small bowl, whisk together lemon juice, olive oil, garlic, oregano, salt, and black pepper.
Step 3
Lay out 4 large sheets of aluminum foil. Divide green beans evenly among the centers of each sheet. Top green beans with sliced red onion.
Step 4
Pat tilapia fillets dry. Place one fillet on top of each pile of vegetables.
Step 5
Drizzle each fillet with the prepared lemon-garlic marinade. Top each fillet with 2–3 lemon slices.
Step 6
Fold the foil over fish and vegetables, sealing tightly to form a packet. Place packets on a baking sheet.
Step 7
Bake for 18–20 minutes, until tilapia is opaque and flakes easily with a fork.
Step 8
Carefully open packets (steam will be hot). Garnish with fresh parsley and serve immediately.

Zusatztipps für die Zubereitung

To ensure the best results, always pat your tilapia fillets dry with a paper towel before adding the marinade; this helps the flavors stick to the fish. Make sure to seal the foil packets tightly to trap the steam, which is what cooks the green beans to a perfect crisp-tender texture.

Varianten und Anpassungen

If you don't have tilapia on hand, you can easily swap it for another mild white fish such as cod or sole. For those who enjoy a bit of heat, try adding a pinch of chili flakes to the marinade for a subtle spicy kick that pairs beautifully with the lemon.

Serviervorschläge

While these packets are a complete meal on their own, you can serve them alongside a portion of quinoa or brown rice if you have extra calories to work with. The grains are excellent for soaking up the delicious lemon-garlic juices left in the foil.

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| cocoastone.com

This simple, elegant meal proves that healthy eating doesn't have to be complicated or bland. With fresh ingredients and a smart cooking technique, you can enjoy a restaurant-quality dinner in the comfort of your own home.

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Frequently Asked Questions

Can I substitute tilapia with other fish?

Yes, mild white fish like cod or sole can be used similarly without altering the cooking method.

How do I ensure the fish stays moist?

Wrapping the fish and vegetables tightly in foil traps steam to keep the tilapia tender and juicy during baking.

Can I add heat to the dish?

Yes, a pinch of chili flakes added to the marinade provides a gentle spicy kick.

What sides pair well with this dish?

Quinoa or brown rice complement the light flavors and add a satisfying texture alongside the fish and green beans.

Is this dish suitable for special diets?

It’s naturally gluten-free and dairy-free, and fits well within low-calorie meal plans.

Lemon Garlic Tilapia Green Beans

A light tilapia dish with lemon, garlic, and tender green beans, perfect for a healthy dinner.

Prep duration
10 minutes
Cooking duration
20 minutes
Overall time
30 minutes
Created by Mara Ellison


Skill level Easy

Cuisine type American

Portion size 4 Portions

Dietary guidelines No dairy, No gluten, Reduced-Carb

What You'll Need

Fish & Vegetables

01 4 tilapia fillets, 4 oz each, fresh or thawed
02 12 oz fresh green beans, trimmed
03 1 small red onion, thinly sliced
04 1 lemon, thinly sliced

Marinade & Seasonings

01 3 tablespoons fresh lemon juice
02 2 tablespoons olive oil
03 2 large garlic cloves, minced
04 1 teaspoon dried oregano
05 ½ teaspoon salt
06 ¼ teaspoon black pepper

Garnish

01 2 tablespoons chopped fresh parsley

Directions

Step 01

Preheat oven: Set oven to 400°F and allow to fully preheat.

Step 02

Prepare marinade: In a small bowl, whisk together lemon juice, olive oil, minced garlic, oregano, salt, and black pepper until combined.

Step 03

Assemble foil packets: Lay out 4 large sheets of aluminum foil. Distribute green beans evenly in the center of each sheet and top with sliced red onion.

Step 04

Position fish: Pat tilapia fillets dry with paper towels and place one fillet on top of the vegetables in each foil packet.

Step 05

Season fish: Drizzle each fillet with the prepared lemon-garlic marinade and top with 2-3 lemon slices.

Step 06

Seal packets: Fold foil over the fish and vegetables, crimping edges tightly to create sealed packets. Transfer packets to a baking sheet.

Step 07

Bake: Bake for 18-20 minutes until tilapia becomes opaque and flakes easily when tested with a fork.

Step 08

Finish and serve: Carefully open packets, being cautious of escaping steam. Garnish with fresh parsley and serve immediately.

Necessary equipment

  • Baking sheet
  • Aluminum foil
  • Small mixing bowl
  • Whisk
  • Knife and cutting board

Allergen details

Review the ingredients for allergies and reach out to a healthcare provider if uncertain.
  • Contains fish (tilapia)
  • Check for cross-contamination in packaged tilapia and pre-seasoned fish products

Nutrition per portion

This nutritional data is intended for reference and doesn't replace professional medical advice.
  • Total calories: 295
  • Total fat: 8 g
  • Carbohydrates: 13 g
  • Proteins: 36 g