Sheet Pan Tuscan Pork Tenderloin with Roasted Fennel and White Beans

Each serving of this Tuscan-inspired sheet pan dinner packs 35 grams of protein from lean pork tenderloin and cannellini beans, paired with 8 grams of fiber and just 345 calories. The combination of rosemary-rubbed pork and slow-roasted fennel creates a nutritionally complete meal where every component pulls its weight. Cannellini beans add plant protein and soluble fiber without requiring a separate side dish, while cherry tomatoes contribute lycopene and natural sweetness that rounds out the plate.

The flavors here are unmistakably Tuscan. Fennel softens and caramelizes in the oven, turning its mild licorice bite into something buttery and sweet. Smoked paprika adds depth to the herb crust on the pork, while Kalamata olives and a squeeze of fresh lemon at the finish bring the briny, bright acidity that ties every element together. The textures range from tender sliced medallions to slightly charred fennel edges and creamy warmed beans.

This is a practical dinner for anyone on GLP-1 therapy who finds that large meals feel overwhelming. The portions are modest but nutrient-dense, and the gentle roasting method keeps the pork tender and easy to digest. One sheet pan means minimal cleanup, which matters on evenings when your appetite is small but your body still needs quality fuel.

Why This Works on GLP-1

Pork tenderloin is one of the leanest cuts available, delivering roughly 31 grams of protein per serving with only 3 grams of fat from the meat itself. That protein density matters during GLP-1-assisted weight loss, where adequate intake helps preserve lean muscle mass even as the scale moves downward. For people taking Mounjaro who experience significant appetite suppression, getting enough protein in a smaller volume of food becomes a daily challenge. Pairing the pork with cannellini beans adds another 5 grams of plant-based protein, bringing the total to 35 grams in a portion that feels manageable rather than heavy.

The fiber profile deserves attention. Cannellini beans provide 4 grams of soluble fiber per serving, and fennel contributes another 3 grams. Soluble fiber slows glucose absorption, which complements the blood sugar regulation that GLP-1 medications already support. Unlike raw cruciferous vegetables that can cause gas and bloating, roasted fennel is one of the gentlest high-fiber vegetables available and has traditionally been used to support digestion.

The overall macronutrient balance keeps each serving under 350 calories while maintaining a protein-to-calorie ratio above 40 percent. The small amount of olive oil provides heart-healthy monounsaturated fats and helps with fat-soluble vitamin absorption from the tomatoes and fennel. For Wegovy users managing their evening meal size, this ratio means genuine nutritional value without the caloric density that makes larger dinners uncomfortable.

Ingredients (serves 4)

For the herb-crusted pork:

• 1¼ lb (567g) pork tenderloin, trimmed of silver skin
• 2 tsp extra-virgin olive oil
• 1 tbsp fresh rosemary, finely chopped (or 1 tsp dried)
• 1 tsp dried oregano
• ½ tsp garlic powder
• ½ tsp smoked paprika
• ½ tsp fine sea salt
• ¼ tsp black pepper

For the sheet pan vegetables and beans:

• 2 medium fennel bulbs (about 1 lb/454g total), trimmed and sliced into ½-inch wedges
• 1½ cups (225g) cherry tomatoes, halved
• 1 medium red onion, cut into ½-inch wedges
• 4 garlic cloves, lightly smashed
• 1 tbsp extra-virgin olive oil
• ¼ tsp fine sea salt
• ¼ tsp black pepper
• 1 can (15 oz/425g) cannellini beans, drained and rinsed
• 2 tbsp (16g) Kalamata olives, roughly chopped

For finishing:

• 1 lemon, zested and juiced (about 2 tbsp juice)
• 2 tbsp fresh flat-leaf parsley, chopped
• Pinch of red pepper flakes (optional)

Instructions

Prepare the pork and preheat:

1. Preheat your oven to 425°F (220°C) and line a large rimmed sheet pan with parchment paper. This temperature is high enough to caramelize the vegetables while cooking the tenderloin through without drying it out.

2. Pat the pork tenderloin thoroughly dry with paper towels. Combine the rosemary, oregano, garlic powder, smoked paprika, salt, and pepper in a small bowl. Rub 2 teaspoons of olive oil over the entire surface of the tenderloin, then press the herb mixture evenly onto all sides. Set aside while you prepare the vegetables — even five minutes of resting helps the seasoning adhere during roasting.

Prepare and arrange the vegetables:

3. Cut the fennel bulbs in half lengthwise, remove the tough core, and slice each half into ½-inch wedges. Save any feathery fronds for garnish if desired. Halve the cherry tomatoes and cut the red onion into wedges of similar thickness so everything roasts at the same rate.

4. In a large bowl, toss the fennel, tomatoes, red onion, and smashed garlic with 1 tablespoon of olive oil, salt, and pepper. Spread the vegetables in a single layer across the sheet pan, leaving a channel down the center for the pork. Crowding the pan steams the vegetables instead of roasting them, so use the full surface.

Roast and finish:

5. Place the seasoned tenderloin in the center of the pan. Roast for 15 minutes undisturbed.

6. Remove the pan from the oven. Scatter the drained cannellini beans and chopped Kalamata olives around the pork, gently tossing them with the partially roasted vegetables. Return the pan to the oven and roast for an additional 8 to 10 minutes, until the pork reaches an internal temperature of 145°F (63°C) on an instant-read thermometer and the fennel wedges are tender with caramelized edges.

7. Transfer the tenderloin to a cutting board and let it rest for 5 minutes. Resting redistributes the juices throughout the meat so each slice stays moist rather than releasing liquid onto the plate. While the pork rests, squeeze the lemon juice over the vegetables and beans still on the pan, then sprinkle with lemon zest and chopped parsley.

8. Slice the tenderloin crosswise into ½-inch medallions. Divide the vegetables and beans among four plates, arrange the pork slices alongside, and finish with a pinch of red pepper flakes if you like gentle heat.

Nutrition per Serving

Estimates calculated from USDA data for raw pork tenderloin, canned cannellini beans (drained), raw fennel, cherry tomatoes, red onion, extra-virgin olive oil, and Kalamata olives. Actual values may vary based on specific brands and exact trimming of the tenderloin.

Practical Notes

Use an instant-read thermometer. Pork tenderloin is lean enough that even a few minutes of overcooking turns it dry and chalky. Pull it at 145°F (63°C) and let carryover heat bring it to a safe final temperature during the five-minute rest. This single tool makes the difference between juicy medallions and a disappointing dinner.

Meal prep stores well for three days. Slice the pork and portion it with the vegetables and beans into airtight containers. Reheat gently in a 325°F (165°C) oven for 8 to 10 minutes or microwave on medium power for 90 seconds. The beans and fennel actually improve overnight as they absorb the lemon and olive juices.

Substitute the fennel if you need to. Zucchini cut into thick half-moons works as a swap, though it cooks faster — add it at the same time as the beans rather than at the start. Trimmed broccolini is another option that holds up well at high heat. Both substitutions will slightly reduce the fiber count.

Start with half a portion if you are in early GLP-1 treatment. Many people in their first weeks on medication find that even a standard serving feels like too much food. Plate half and refrigerate the rest — you can finish it as a snack later or combine it with tomorrow's lunch. The nutrition still works in smaller amounts because the protein density is high.

Save the fennel fronds. Those wispy green tops have a mild anise flavor and make a fresh garnish. Chop them finely and scatter over the finished plate alongside the parsley. They add visual appeal and a delicate flavor that complements the roasted wedges.

Frequently Asked Questions

This article provides general food and nutrition guidance only. It does not constitute medical advice. Always consult your healthcare provider regarding your GLP-1 medication and individual nutritional needs.